157540699 has 2 divisors, whose sum is σ = 157540700. Its totient is φ = 157540698.

The previous prime is 157540687. The next prime is 157540727. The reversal of 157540699 is 996045751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157540699 - 2¹¹ = 157538651 is a prime.

It is not a weakly prime, because it can be changed into another prime (157540199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78770349 + 78770350.

It is an arithmetic number, because the mean of its divisors is an integer number (78770350).

Almost surely, 2^157540699 is an apocalyptic number.

157540699 is a deficient number, since it is larger than the sum of its proper divisors (1).

157540699 is an equidigital number, since it uses as much as digits as its factorization.

157540699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 340200, while the sum is 46.

The square root of 157540699 is about 12551.5217802464. The cubic root of 157540699 is about 540.0876618087.

The spelling of 157540699 in words is "one hundred fifty-seven million, five hundred forty thousand, six hundred ninety-nine".