245203631 has 8 divisors (see below), whose sum is σ = 259795584. Its totient is φ = 230630400.

The previous prime is 245203619. The next prime is 245203639. The reversal of 245203631 is 136302542.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245203631 is a prime.

It is a super-2 number, since 2×245203631² = 120249641311168322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245203631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245203639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29471 + ... + 36863.

It is an arithmetic number, because the mean of its divisors is an integer number (32474448).

Almost surely, 2^245203631 is an apocalyptic number.

245203631 is a deficient number, since it is larger than the sum of its proper divisors (14591953).

245203631 is a wasteful number, since it uses less digits than its factorization.

245203631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9361.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 245203631 is about 15658.9792451488. The cubic root of 245203631 is about 625.9057851045.

The spelling of 245203631 in words is "two hundred forty-five million, two hundred three thousand, six hundred thirty-one".