149573739 has 8 divisors (see below), whose sum is σ = 227921920. Its totient is φ = 85470696.

The previous prime is 149573731. The next prime is 149573759. The reversal of 149573739 is 937375941.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149573739 - 2³ = 149573731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149573731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3561259 + ... + 3561300.

It is an arithmetic number, because the mean of its divisors is an integer number (28490240).

Almost surely, 2^149573739 is an apocalyptic number.

149573739 is a deficient number, since it is larger than the sum of its proper divisors (78348181).

149573739 is an equidigital number, since it uses as much as digits as its factorization.

149573739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7122569.

The product of its digits is 714420, while the sum is 48.

The square root of 149573739 is about 12230.0343008513. The cubic root of 149573739 is about 530.8255071943.

The spelling of 149573739 in words is "one hundred forty-nine million, five hundred seventy-three thousand, seven hundred thirty-nine".