1315161492 has 24 divisors (see below), whose sum is σ = 3114513696. Its totient is φ = 431843808.

The previous prime is 1315161481. The next prime is 1315161499. The reversal of 1315161492 is 2941615131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315161499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817083 + ... + 818690.

It is an arithmetic number, because the mean of its divisors is an integer number (129771404).

Almost surely, 2^1315161492 is an apocalyptic number.

1315161492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1315161492 is an abundant number, since it is smaller than the sum of its proper divisors (1799352204).

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

1315161492 is a wasteful number, since it uses less digits than its factorization.

1315161492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635847 (or 1635845 counting only the distinct ones).

The product of its digits is 6480, while the sum is 33.

The square root of 1315161492 is about 36265.1553422841. The cubic root of 1315161492 is about 1095.6193522919.

The spelling of 1315161492 in words is "one billion, three hundred fifteen million, one hundred sixty-one thousand, four hundred ninety-two".