149653203 has 24 divisors (see below), whose sum is σ = 242212608. Its totient is φ = 81796176.

The previous prime is 149653199. The next prime is 149653219. The reversal of 149653203 is 302356941.

It is not a de Polignac number, because 149653203 - 2² = 149653199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149653223) 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, 18751 + ... + 25512.

It is an arithmetic number, because the mean of its divisors is an integer number (10092192).

Almost surely, 2^149653203 is an apocalyptic number.

149653203 is a deficient number, since it is larger than the sum of its proper divisors (92559405).

149653203 is a wasteful number, since it uses less digits than its factorization.

149653203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44303 (or 44296 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 149653203 is about 12233.2825929920. The cubic root of 149653203 is about 530.9194943935.

The spelling of 149653203 in words is "one hundred forty-nine million, six hundred fifty-three thousand, two hundred three".