157793387 has 2 divisors, whose sum is σ = 157793388. Its totient is φ = 157793386.

The previous prime is 157793381. The next prime is 157793401. The reversal of 157793387 is 783397751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157793387 - 2⁶ = 157793323 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157793381) 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, 78896693 + 78896694.

It is an arithmetic number, because the mean of its divisors is an integer number (78896694).

Almost surely, 2^157793387 is an apocalyptic number.

157793387 is a deficient number, since it is larger than the sum of its proper divisors (1).

157793387 is an equidigital number, since it uses as much as digits as its factorization.

157793387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1111320, while the sum is 50.

The square root of 157793387 is about 12561.5837775338. The cubic root of 157793387 is about 540.3762661103.

The spelling of 157793387 in words is "one hundred fifty-seven million, seven hundred ninety-three thousand, three hundred eighty-seven".