651961130 has 8 divisors (see below), whose sum is σ = 1173530052. Its totient is φ = 260784448.

The previous prime is 651961129. The next prime is 651961157. The reversal of 651961130 is 31169156.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 649281361 + 2679769 = 25481^2 + 1637^2 .

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

It is a super-3 number, since 3×651961130³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32598047 + ... + 32598066.

Almost surely, 2^651961130 is an apocalyptic number.

651961130 is a deficient number, since it is larger than the sum of its proper divisors (521568922).

651961130 is a wasteful number, since it uses less digits than its factorization.

651961130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65196120.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 651961130 is about 25533.5295249208. The cubic root of 651961130 is about 867.1094139824.

The spelling of 651961130 in words is "six hundred fifty-one million, nine hundred sixty-one thousand, one hundred thirty".