70138125 has 60 divisors (see below), whose sum is σ = 130405132. Its totient is φ = 36288000.

The previous prime is 70138111. The next prime is 70138129. The reversal of 70138125 is 52183107.

It can be written as a sum of positive squares in 10 ways, for example, as 47155689 + 22982436 = 6867^2 + 4794^2 .

It is not a de Polignac number, because 70138125 - 2⁵ = 70138093 is a prime.

It is a super-3 number, since 3×70138125³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70138129) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 207957 + ... + 208293.

Almost surely, 2^70138125 is an apocalyptic number.

70138125 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

70138125 is a deficient number, since it is larger than the sum of its proper divisors (60267007).

70138125 is a wasteful number, since it uses less digits than its factorization.

70138125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 70138125 is about 8374.8507449387. The cubic root of 70138125 is about 412.3994245156.

The spelling of 70138125 in words is "seventy million, one hundred thirty-eight thousand, one hundred twenty-five".