1315162740 has 96 divisors (see below), whose sum is σ = 3860309376. Its totient is φ = 334172160.

The previous prime is 1315162733. The next prime is 1315162769. The reversal of 1315162740 is 472615131.

1315162740 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1315162698 and 1315162707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99564 + ... + 111996.

It is an arithmetic number, because the mean of its divisors is an integer number (40211556).

Almost surely, 2^1315162740 is an apocalyptic number.

1315162740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1315162740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1930154688).

1315162740 is an abundant number, since it is smaller than the sum of its proper divisors (2545146636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1315162740 is a wasteful number, since it uses less digits than its factorization.

1315162740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12529 (or 12527 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1315162740 is about 36265.1725488795. The cubic root of 1315162740 is about 1095.6196988482.

Adding to 1315162740 its reverse (472615131), we get a palindrome (1787777871).

The spelling of 1315162740 in words is "one billion, three hundred fifteen million, one hundred sixty-two thousand, seven hundred forty".