245351431 has 8 divisors (see below), whose sum is σ = 264527424. Its totient is φ = 226218720.

The previous prime is 245351417. The next prime is 245351471. The reversal of 245351431 is 134153542.

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

It is not a de Polignac number, because 245351431 - 2⁵ = 245351399 is a prime.

It is a super-2 number, since 2×245351431² = 120394649387495522, 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 245351431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245351401) 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, 1485 + ... + 22201.

It is an arithmetic number, because the mean of its divisors is an integer number (33065928).

Almost surely, 2^245351431 is an apocalyptic number.

245351431 is a deficient number, since it is larger than the sum of its proper divisors (19175993).

245351431 is a wasteful number, since it uses less digits than its factorization.

245351431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21641.

The product of its digits is 7200, while the sum is 28.

The square root of 245351431 is about 15663.6978711925. The cubic root of 245351431 is about 626.0315177373.

The spelling of 245351431 in words is "two hundred forty-five million, three hundred fifty-one thousand, four hundred thirty-one".