1310487157 has 4 divisors (see below), whose sum is σ = 1497699616. Its totient is φ = 1123274700.

The previous prime is 1310487151. The next prime is 1310487181. The reversal of 1310487157 is 7517840131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7517840131 = 401 ⋅18747731.

It is a cyclic number.

It is not a de Polignac number, because 1310487157 - 2¹⁵ = 1310454389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310487151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93606219 + ... + 93606232.

It is an arithmetic number, because the mean of its divisors is an integer number (374424904).

Almost surely, 2^1310487157 is an apocalyptic number.

It is an amenable number.

1310487157 is a deficient number, since it is larger than the sum of its proper divisors (187212459).

1310487157 is an equidigital number, since it uses as much as digits as its factorization.

1310487157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187212458.

The product of its (nonzero) digits is 23520, while the sum is 37.

The square root of 1310487157 is about 36200.6513339194. The cubic root of 1310487157 is about 1094.3197980104.

The spelling of 1310487157 in words is "one billion, three hundred ten million, four hundred eighty-seven thousand, one hundred fifty-seven".