149792939 has 2 divisors, whose sum is σ = 149792940. Its totient is φ = 149792938.

The previous prime is 149792887. The next prime is 149792969. The reversal of 149792939 is 939297941.

It is a strong prime.

It is an emirp because it is prime and its reverse (939297941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149792939 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149792969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74896469 + 74896470.

It is an arithmetic number, because the mean of its divisors is an integer number (74896470).

Almost surely, 2^149792939 is an apocalyptic number.

149792939 is a deficient number, since it is larger than the sum of its proper divisors (1).

149792939 is an equidigital number, since it uses as much as digits as its factorization.

149792939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1102248, while the sum is 53.

The square root of 149792939 is about 12238.9925647498. The cubic root of 149792939 is about 531.0846885139.

The spelling of 149792939 in words is "one hundred forty-nine million, seven hundred ninety-two thousand, nine hundred thirty-nine".