651137061 has 16 divisors (see below), whose sum is σ = 906756480. Its totient is φ = 414839040.

The previous prime is 651137027. The next prime is 651137099. The reversal of 651137061 is 160731156.

It is not a de Polignac number, because 651137061 - 2¹⁰ = 651136037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651137161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85281 + ... + 92601.

It is an arithmetic number, because the mean of its divisors is an integer number (56672280).

Almost surely, 2^651137061 is an apocalyptic number.

It is an amenable number.

651137061 is a deficient number, since it is larger than the sum of its proper divisors (255619419).

651137061 is a wasteful number, since it uses less digits than its factorization.

651137061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8636.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 651137061 is about 25517.3874250480. The cubic root of 651137061 is about 866.7439222223.

The spelling of 651137061 in words is "six hundred fifty-one million, one hundred thirty-seven thousand, sixty-one".