139024922087 has 2 divisors, whose sum is σ = 139024922088. Its totient is φ = 139024922086.

The previous prime is 139024922053. The next prime is 139024922147. The reversal of 139024922087 is 780229420931.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139024922087 - 2¹² = 139024917991 is a prime.

It is a super-2 number, since 2×139024922087² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139024922017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69512461043 + 69512461044.

It is an arithmetic number, because the mean of its divisors is an integer number (69512461044).

Almost surely, 2^139024922087 is an apocalyptic number.

139024922087 is a deficient number, since it is larger than the sum of its proper divisors (1).

139024922087 is an equidigital number, since it uses as much as digits as its factorization.

139024922087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 139024922087 in words is "one hundred thirty-nine billion, twenty-four million, nine hundred twenty-two thousand, eighty-seven".