149971230439 has 2 divisors, whose sum is σ = 149971230440. Its totient is φ = 149971230438.

The previous prime is 149971230403. The next prime is 149971230457. The reversal of 149971230439 is 934032179941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149971230439 - 2¹⁵ = 149971197671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149971230469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74985615219 + 74985615220.

It is an arithmetic number, because the mean of its divisors is an integer number (74985615220).

Almost surely, 2^149971230439 is an apocalyptic number.

149971230439 is a deficient number, since it is larger than the sum of its proper divisors (1).

149971230439 is an equidigital number, since it uses as much as digits as its factorization.

149971230439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 52.

The spelling of 149971230439 in words is "one hundred forty-nine billion, nine hundred seventy-one million, two hundred thirty thousand, four hundred thirty-nine".