149403933 has 24 divisors (see below), whose sum is σ = 255772608. Its totient is φ = 85372704.

The previous prime is 149403899. The next prime is 149403937. The reversal of 149403933 is 339304941.

It is not a de Polignac number, because 149403933 - 2¹⁸ = 149141789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149403937) 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, 42216 + ... + 45617.

It is an arithmetic number, because the mean of its divisors is an integer number (10657192).

Almost surely, 2^149403933 is an apocalyptic number.

It is an amenable number.

149403933 is a deficient number, since it is larger than the sum of its proper divisors (106368675).

149403933 is an frugal number, since it uses more digits than its factorization.

149403933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87855 (or 87843 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 149403933 is about 12223.0901575665. The cubic root of 149403933 is about 530.6245550571.

The spelling of 149403933 in words is "one hundred forty-nine million, four hundred three thousand, nine hundred thirty-three".