75389157 has 8 divisors (see below), whose sum is σ = 111687680. Its totient is φ = 50259420.

The previous prime is 75389143. The next prime is 75389177. The reversal of 75389157 is 75198357.

It is not a de Polignac number, because 75389157 - 2⁷ = 75389029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75389177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1396069 + ... + 1396122.

It is an arithmetic number, because the mean of its divisors is an integer number (13960960).

Almost surely, 2^75389157 is an apocalyptic number.

It is an amenable number.

75389157 is a deficient number, since it is larger than the sum of its proper divisors (36298523).

75389157 is a wasteful number, since it uses less digits than its factorization.

75389157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2792200 (or 2792194 counting only the distinct ones).

The product of its digits is 264600, while the sum is 45.

The square root of 75389157 is about 8682.6929578328. The cubic root of 75389157 is about 422.4444696692. Note that the first 4 decimals are identical.

The spelling of 75389157 in words is "seventy-five million, three hundred eighty-nine thousand, one hundred fifty-seven".