70135228 has 6 divisors (see below), whose sum is σ = 122736656. Its totient is φ = 35067612.

The previous prime is 70135207. The next prime is 70135229. The reversal of 70135228 is 82253107.

It is a super-2 number, since 2×70135228² = 9837900413223968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70135196 and 70135205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70135229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8766900 + ... + 8766907.

Almost surely, 2^70135228 is an apocalyptic number.

It is an amenable number.

70135228 is a deficient number, since it is larger than the sum of its proper divisors (52601428).

70135228 is a wasteful number, since it uses less digits than its factorization.

70135228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17533811 (or 17533809 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 70135228 is about 8374.6777848464. The cubic root of 70135228 is about 412.3937464929.

The spelling of 70135228 in words is "seventy million, one hundred thirty-five thousand, two hundred twenty-eight".