157240323 has 12 divisors (see below), whose sum is σ = 227235840. Its totient is φ = 104775696.

The previous prime is 157240313. The next prime is 157240337. The reversal of 157240323 is 323042751.

It is not a de Polignac number, because 157240323 - 2⁹ = 157239811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157240313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28158 + ... + 33276.

It is an arithmetic number, because the mean of its divisors is an integer number (18936320).

Almost surely, 2^157240323 is an apocalyptic number.

157240323 is a deficient number, since it is larger than the sum of its proper divisors (69995517).

157240323 is a wasteful number, since it uses less digits than its factorization.

157240323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8538 (or 8535 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 157240323 is about 12539.5503507901. The cubic root of 157240323 is about 539.7441895354.

The spelling of 157240323 in words is "one hundred fifty-seven million, two hundred forty thousand, three hundred twenty-three".