251201104 has 40 divisors (see below), whose sum is σ = 606800448. Its totient is φ = 97870080.

The previous prime is 251201089. The next prime is 251201107. The reversal of 251201104 is 401102152.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251201107) 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 7 ways as a sum of consecutive naturals, for example, 100717 + ... + 103180.

Almost surely, 2^251201104 is an apocalyptic number.

It is an amenable number.

251201104 is an abundant number, since it is smaller than the sum of its proper divisors (355599344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

251201104 is a wasteful number, since it uses less digits than its factorization.

251201104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203923 (or 203917 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 251201104 is about 15849.3250329470. The cubic root of 251201104 is about 630.9677777202.

Adding to 251201104 its reverse (401102152), we get a palindrome (652303256).

The spelling of 251201104 in words is "two hundred fifty-one million, two hundred one thousand, one hundred four".