70958138 has 16 divisors (see below), whose sum is σ = 107590560. Its totient is φ = 35096976.

The previous prime is 70958137. The next prime is 70958143. The reversal of 70958138 is 83185907.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 70958095 and 70958104.

It is not an unprimeable number, because it can be changed into a prime (70958131) 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, 99728 + ... + 100436.

It is an arithmetic number, because the mean of its divisors is an integer number (6724410).

Almost surely, 2^70958138 is an apocalyptic number.

70958138 is a deficient number, since it is larger than the sum of its proper divisors (36632422).

70958138 is a wasteful number, since it uses less digits than its factorization.

70958138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 70958138 is about 8423.6653542267. The cubic root of 70958138 is about 414.0003772936. Note that the first 3 decimals are identical.

The spelling of 70958138 in words is "seventy million, nine hundred fifty-eight thousand, one hundred thirty-eight".