245126431 has 8 divisors (see below), whose sum is σ = 272456784. Its totient is φ = 218637120.

The previous prime is 245126423. The next prime is 245126447. The reversal of 245126431 is 134621542.

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 245126431 - 2³ = 245126423 is a prime.

It is a super-2 number, since 2×245126431² = 120173934349595522, 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 245126431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245126411) 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, 209646 + ... + 210811.

It is an arithmetic number, because the mean of its divisors is an integer number (34057098).

Almost surely, 2^245126431 is an apocalyptic number.

245126431 is a deficient number, since it is larger than the sum of its proper divisors (27330353).

245126431 is a wasteful number, since it uses less digits than its factorization.

245126431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420521.

The product of its digits is 5760, while the sum is 28.

The square root of 245126431 is about 15656.5140117460. The cubic root of 245126431 is about 625.8400914083.

Adding to 245126431 its reverse (134621542), we get a palindrome (379747973).

It can be divided in two parts, 2451 and 26431, that added together give a palindrome (28882).

The spelling of 245126431 in words is "two hundred forty-five million, one hundred twenty-six thousand, four hundred thirty-one".