157210643 has 2 divisors, whose sum is σ = 157210644. Its totient is φ = 157210642.

The previous prime is 157210639. The next prime is 157210657. The reversal of 157210643 is 346012751.

157210643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157210643 - 2² = 157210639 is a prime.

It is not a weakly prime, because it can be changed into another prime (157210673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78605321 + 78605322.

It is an arithmetic number, because the mean of its divisors is an integer number (78605322).

Almost surely, 2^157210643 is an apocalyptic number.

157210643 is a deficient number, since it is larger than the sum of its proper divisors (1).

157210643 is an equidigital number, since it uses as much as digits as its factorization.

157210643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 157210643 is about 12538.3668394253. The cubic root of 157210643 is about 539.7102274760.

The spelling of 157210643 in words is "one hundred fifty-seven million, two hundred ten thousand, six hundred forty-three".