139007651 has 2 divisors, whose sum is σ = 139007652. Its totient is φ = 139007650.

The previous prime is 139007621. The next prime is 139007677. The reversal of 139007651 is 156700931.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139007651 is a prime.

It is not a weakly prime, because it can be changed into another prime (139007611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69503825 + 69503826.

It is an arithmetic number, because the mean of its divisors is an integer number (69503826).

Almost surely, 2^139007651 is an apocalyptic number.

139007651 is a deficient number, since it is larger than the sum of its proper divisors (1).

139007651 is an equidigital number, since it uses as much as digits as its factorization.

139007651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 139007651 is about 11790.1505927617. The cubic root of 139007651 is about 518.0196508697.

The spelling of 139007651 in words is "one hundred thirty-nine million, seven thousand, six hundred fifty-one".