157445287 has 2 divisors, whose sum is σ = 157445288. Its totient is φ = 157445286.

The previous prime is 157445261. The next prime is 157445293. The reversal of 157445287 is 782544751.

157445287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157445287 - 2²³ = 149056679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157445237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78722643 + 78722644.

It is an arithmetic number, because the mean of its divisors is an integer number (78722644).

Almost surely, 2^157445287 is an apocalyptic number.

157445287 is a deficient number, since it is larger than the sum of its proper divisors (1).

157445287 is an equidigital number, since it uses as much as digits as its factorization.

157445287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 313600, while the sum is 43.

The square root of 157445287 is about 12547.7203905729. The cubic root of 157445287 is about 539.9786079774.

The spelling of 157445287 in words is "one hundred fifty-seven million, four hundred forty-five thousand, two hundred eighty-seven".