7399990139 has 2 divisors, whose sum is σ = 7399990140. Its totient is φ = 7399990138.

The previous prime is 7399990051. The next prime is 7399990159. The reversal of 7399990139 is 9310999937.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7399990139 - 2¹⁶ = 7399924603 is a prime.

It is not a weakly prime, because it can be changed into another prime (7399990159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3699995069 + 3699995070.

It is an arithmetic number, because the mean of its divisors is an integer number (3699995070).

Almost surely, 2^7399990139 is an apocalyptic number.

7399990139 is a deficient number, since it is larger than the sum of its proper divisors (1).

7399990139 is an equidigital number, since it uses as much as digits as its factorization.

7399990139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3720087, while the sum is 59.

The square root of 7399990139 is about 86023.1953545089. The cubic root of 7399990139 is about 1948.6942947850.

The spelling of 7399990139 in words is "seven billion, three hundred ninety-nine million, nine hundred ninety thousand, one hundred thirty-nine".