245431252 has 24 divisors (see below), whose sum is σ = 488924352. Its totient is φ = 106708800.

The previous prime is 245431237. The next prime is 245431273. The reversal of 245431252 is 252134542.

It is a self number, because there is not a number n which added to its sum of digits gives 245431252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120249 + ... + 122272.

It is an arithmetic number, because the mean of its divisors is an integer number (20371848).

Almost surely, 2^245431252 is an apocalyptic number.

245431252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

245431252 is a deficient number, since it is larger than the sum of its proper divisors (243493100).

245431252 is a wasteful number, since it uses less digits than its factorization.

245431252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242559 (or 242557 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 245431252 is about 15666.2456255479. The cubic root of 245431252 is about 626.0994000174.

Adding to 245431252 its reverse (252134542), we get a palindrome (497565794).

The spelling of 245431252 in words is "two hundred forty-five million, four hundred thirty-one thousand, two hundred fifty-two".