70506156 has 48 divisors (see below), whose sum is σ = 190149120. Its totient is φ = 19916160.

The previous prime is 70506143. The next prime is 70506167. The reversal of 70506156 is 65160507.

It is a super-2 number, since 2×70506156² = 9942236067792672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2761 + ... + 12191.

It is an arithmetic number, because the mean of its divisors is an integer number (3961440).

Almost surely, 2^70506156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70506156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95074560).

70506156 is an abundant number, since it is smaller than the sum of its proper divisors (119642964).

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

70506156 is a wasteful number, since it uses less digits than its factorization.

70506156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9534 (or 9532 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 70506156 is about 8396.7943883365. The cubic root of 70506156 is about 413.1194849973.

The spelling of 70506156 in words is "seventy million, five hundred six thousand, one hundred fifty-six".