149703939 has 24 divisors (see below), whose sum is σ = 269597952. Its totient is φ = 77767920.

The previous prime is 149703901. The next prime is 149703949. The reversal of 149703939 is 939307941.

It is not a de Polignac number, because 149703939 - 2⁹ = 149703427 is a prime.

It is a super-2 number, since 2×149703939² = 44822538704231442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 149703894 and 149703903.

It is not an unprimeable number, because it can be changed into a prime (149703949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107319 + ... + 108704.

It is an arithmetic number, because the mean of its divisors is an integer number (11233248).

Almost surely, 2^149703939 is an apocalyptic number.

149703939 is a deficient number, since it is larger than the sum of its proper divisors (119894013).

149703939 is a wasteful number, since it uses less digits than its factorization.

149703939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216047 (or 216044 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 149703939 is about 12235.3561043396. The cubic root of 149703939 is about 530.9794857322.

The spelling of 149703939 in words is "one hundred forty-nine million, seven hundred three thousand, nine hundred thirty-nine".