245253631 has 8 divisors (see below), whose sum is σ = 285578784. Its totient is φ = 206250720.

The previous prime is 245253607. The next prime is 245253641. The reversal of 245253631 is 136352542.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 245253631 - 2¹⁵ = 245220863 is a prime.

It is a super-2 number, since 2×245253631² = 120298687037368322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245253593 and 245253602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245253601) 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, 330160 + ... + 330901.

It is an arithmetic number, because the mean of its divisors is an integer number (35697348).

Almost surely, 2^245253631 is an apocalyptic number.

245253631 is a deficient number, since it is larger than the sum of its proper divisors (40325153).

245253631 is an equidigital number, since it uses as much as digits as its factorization.

245253631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661121.

The product of its digits is 21600, while the sum is 31.

The square root of 245253631 is about 15660.5756918448. The cubic root of 245253631 is about 625.9483254783.

The spelling of 245253631 in words is "two hundred forty-five million, two hundred fifty-three thousand, six hundred thirty-one".