1310542140 has 48 divisors (see below), whose sum is σ = 3721213440. Its totient is φ = 344554560.

The previous prime is 1310542111. The next prime is 1310542141. The reversal of 1310542140 is 412450131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310542141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149560 + ... + 158079.

It is an arithmetic number, because the mean of its divisors is an integer number (77525280).

Almost surely, 2^1310542140 is an apocalyptic number.

1310542140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310542140 is an abundant number, since it is smaller than the sum of its proper divisors (2410671300).

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

1310542140 is a wasteful number, since it uses less digits than its factorization.

1310542140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307722 (or 307720 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1310542140 is about 36201.4107459917. The cubic root of 1310542140 is about 1094.3351022794.

Adding to 1310542140 its reverse (412450131), we get a palindrome (1722992271).

The spelling of 1310542140 in words is "one billion, three hundred ten million, five hundred forty-two thousand, one hundred forty".