651136252 has 24 divisors (see below), whose sum is σ = 1257075792. Its totient is φ = 293193600.

The previous prime is 651136247. The next prime is 651136253. The reversal of 651136252 is 252631156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651136253) 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, 150574 + ... + 154837.

It is an arithmetic number, because the mean of its divisors is an integer number (52378158).

Almost surely, 2^651136252 is an apocalyptic number.

It is an amenable number.

651136252 is a deficient number, since it is larger than the sum of its proper divisors (605939540).

651136252 is a wasteful number, since it uses less digits than its factorization.

651136252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305469 (or 305467 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 651136252 is about 25517.3715731068. The cubic root of 651136252 is about 866.7435632625.

The spelling of 651136252 in words is "six hundred fifty-one million, one hundred thirty-six thousand, two hundred fifty-two".