157643744 has 12 divisors (see below), whose sum is σ = 310361184. Its totient is φ = 78821856.

The previous prime is 157643743. The next prime is 157643819. The reversal of 157643744 is 447346751.

157643744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157643743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2463152 + ... + 2463215.

It is an arithmetic number, because the mean of its divisors is an integer number (25863432).

Almost surely, 2^157643744 is an apocalyptic number.

It is an amenable number.

157643744 is a deficient number, since it is larger than the sum of its proper divisors (152717440).

157643744 is an equidigital number, since it uses as much as digits as its factorization.

157643744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4926377 (or 4926369 counting only the distinct ones).

The product of its digits is 282240, while the sum is 41.

The square root of 157643744 is about 12555.6259899696. The cubic root of 157643744 is about 540.2053905478.

The spelling of 157643744 in words is "one hundred fifty-seven million, six hundred forty-three thousand, seven hundred forty-four".