149708667439 has 2 divisors, whose sum is σ = 149708667440. Its totient is φ = 149708667438.

The previous prime is 149708667359. The next prime is 149708667457. The reversal of 149708667439 is 934766807941.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149708667439 is a prime.

It is a super-2 number, since 2×149708667439² (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 (149708667139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74854333719 + 74854333720.

It is an arithmetic number, because the mean of its divisors is an integer number (74854333720).

Almost surely, 2^149708667439 is an apocalyptic number.

149708667439 is a deficient number, since it is larger than the sum of its proper divisors (1).

149708667439 is an equidigital number, since it uses as much as digits as its factorization.

149708667439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54867456, while the sum is 64.

The spelling of 149708667439 in words is "one hundred forty-nine billion, seven hundred eight million, six hundred sixty-seven thousand, four hundred thirty-nine".