150139309 has 2 divisors, whose sum is σ = 150139310. Its totient is φ = 150139308.

The previous prime is 150139279. The next prime is 150139343. The reversal of 150139309 is 903931051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128255625 + 21883684 = 11325^2 + 4678^2 .

It is a cyclic number.

It is not a de Polignac number, because 150139309 - 2⁵ = 150139277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150139399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75069654 + 75069655.

It is an arithmetic number, because the mean of its divisors is an integer number (75069655).

Almost surely, 2^150139309 is an apocalyptic number.

It is an amenable number.

150139309 is a deficient number, since it is larger than the sum of its proper divisors (1).

150139309 is an equidigital number, since it uses as much as digits as its factorization.

150139309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3645, while the sum is 31.

The square root of 150139309 is about 12253.1346601594. The cubic root of 150139309 is about 531.4937202550.

The spelling of 150139309 in words is "one hundred fifty million, one hundred thirty-nine thousand, three hundred nine".