1481157131 has 2 divisors, whose sum is σ = 1481157132. Its totient is φ = 1481157130.

The previous prime is 1481157127. The next prime is 1481157149. The reversal of 1481157131 is 1317511841.

It is a weak prime.

It is an emirp because it is prime and its reverse (1317511841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1481157131 - 2² = 1481157127 is a prime.

It is a super-2 number, since 2×1481157131² = 4387652893424302322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1481157191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740578565 + 740578566.

It is an arithmetic number, because the mean of its divisors is an integer number (740578566).

Almost surely, 2^1481157131 is an apocalyptic number.

1481157131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1481157131 is an equidigital number, since it uses as much as digits as its factorization.

1481157131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 32.

The square root of 1481157131 is about 38485.8042789806. The cubic root of 1481157131 is about 1139.9007636507.

Adding to 1481157131 its reverse (1317511841), we get a palindrome (2798668972).

The spelling of 1481157131 in words is "one billion, four hundred eighty-one million, one hundred fifty-seven thousand, one hundred thirty-one".