257032101 has 8 divisors (see below), whose sum is σ = 348327904. Its totient is φ = 168545520.

The previous prime is 257032063. The next prime is 257032103. The reversal of 257032101 is 101230752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 257032101 - 2⁹ = 257031589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257032103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702091 + ... + 702456.

It is an arithmetic number, because the mean of its divisors is an integer number (43540988).

Almost surely, 2^257032101 is an apocalyptic number.

It is an amenable number.

257032101 is a deficient number, since it is larger than the sum of its proper divisors (91295803).

257032101 is a wasteful number, since it uses less digits than its factorization.

257032101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404611.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 257032101 is about 16032.2207133011. The cubic root of 257032101 is about 635.8125881686.

Adding to 257032101 its reverse (101230752), we get a palindrome (358262853).

The spelling of 257032101 in words is "two hundred fifty-seven million, thirty-two thousand, one hundred one".