1315421010 has 24 divisors (see below), whose sum is σ = 3420094860. Its totient is φ = 350778912.

The previous prime is 1315420993. The next prime is 1315421017. The reversal of 1315421010 is 101245131.

It can be written as a sum of positive squares in 2 ways, for example, as 1192942521 + 122478489 = 34539^2 + 11067^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1315421017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7307805 + ... + 7307984.

Almost surely, 2^1315421010 is an apocalyptic number.

1315421010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1315421010 is an abundant number, since it is smaller than the sum of its proper divisors (2104673850).

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

1315421010 is a wasteful number, since it uses less digits than its factorization.

1315421010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14615802 (or 14615799 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1315421010 is about 36268.7332284986. The cubic root of 1315421010 is about 1095.6914129589.

Adding to 1315421010 its reverse (101245131), we get a palindrome (1416666141).

The spelling of 1315421010 in words is "one billion, three hundred fifteen million, four hundred twenty-one thousand, ten".