157461487 has 2 divisors, whose sum is σ = 157461488. Its totient is φ = 157461486.

The previous prime is 157461449. The next prime is 157461533. The reversal of 157461487 is 784164751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157461487 - 2¹¹ = 157459439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157461407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78730743 + 78730744.

It is an arithmetic number, because the mean of its divisors is an integer number (78730744).

Almost surely, 2^157461487 is an apocalyptic number.

157461487 is a deficient number, since it is larger than the sum of its proper divisors (1).

157461487 is an equidigital number, since it uses as much as digits as its factorization.

157461487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 43.

The square root of 157461487 is about 12548.3659095517. The cubic root of 157461487 is about 539.9971273281.

The spelling of 157461487 in words is "one hundred fifty-seven million, four hundred sixty-one thousand, four hundred eighty-seven".