75139902 has 48 divisors (see below), whose sum is σ = 168143040. Its totient is φ = 24238656.

The previous prime is 75139901. The next prime is 75139907. The reversal of 75139902 is 20993157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75139901) 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, 74868 + ... + 75864.

It is an arithmetic number, because the mean of its divisors is an integer number (3502980).

Almost surely, 2^75139902 is an apocalyptic number.

75139902 is an abundant number, since it is smaller than the sum of its proper divisors (93003138).

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

75139902 is a wasteful number, since it uses less digits than its factorization.

75139902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137 (or 1134 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 75139902 is about 8668.3275203467. The cubic root of 75139902 is about 421.9783873690.

The spelling of 75139902 in words is "seventy-five million, one hundred thirty-nine thousand, nine hundred two".