203139672 has 32 divisors (see below), whose sum is σ = 517434480. Its totient is φ = 66435200.

The previous prime is 203139661. The next prime is 203139679. The reversal of 203139672 is 276931302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203139679) 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, 78579 + ... + 81122.

Almost surely, 2^203139672 is an apocalyptic number.

It is an amenable number.

203139672 is an abundant number, since it is smaller than the sum of its proper divisors (314294808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203139672 is a wasteful number, since it uses less digits than its factorization.

203139672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159763 (or 159759 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 203139672 is about 14252.7075322551. The cubic root of 203139672 is about 587.8478249361.

The spelling of 203139672 in words is "two hundred three million, one hundred thirty-nine thousand, six hundred seventy-two".