257734132 has 6 divisors (see below), whose sum is σ = 451034738. Its totient is φ = 128867064.

The previous prime is 257734117. The next prime is 257734151. The reversal of 257734132 is 231437752.

It can be written as a sum of positive squares in only one way, i.e., 157854096 + 99880036 = 12564^2 + 9994^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32216763 + ... + 32216770.

Almost surely, 2^257734132 is an apocalyptic number.

It is an amenable number.

257734132 is a deficient number, since it is larger than the sum of its proper divisors (193300606).

257734132 is a wasteful number, since it uses less digits than its factorization.

257734132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64433537 (or 64433535 counting only the distinct ones).

The product of its digits is 35280, while the sum is 34.

The square root of 257734132 is about 16054.1001616410. The cubic root of 257734132 is about 636.3909262830.

The spelling of 257734132 in words is "two hundred fifty-seven million, seven hundred thirty-four thousand, one hundred thirty-two".