651463139 has 2 divisors, whose sum is σ = 651463140. Its totient is φ = 651463138.

The previous prime is 651463091. The next prime is 651463199. The reversal of 651463139 is 931364156.

651463139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 651463139 - 2²⁴ = 634685923 is a prime.

It is not a weakly prime, because it can be changed into another prime (651463199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325731569 + 325731570.

It is an arithmetic number, because the mean of its divisors is an integer number (325731570).

Almost surely, 2^651463139 is an apocalyptic number.

651463139 is a deficient number, since it is larger than the sum of its proper divisors (1).

651463139 is an equidigital number, since it uses as much as digits as its factorization.

651463139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 38.

The square root of 651463139 is about 25523.7759549797. The cubic root of 651463139 is about 866.8885814534. Note that the first 3 decimals are identical.

The spelling of 651463139 in words is "six hundred fifty-one million, four hundred sixty-three thousand, one hundred thirty-nine".