70137816 has 192 divisors, whose sum is σ = 222710400. Its totient is φ = 18289152.

The previous prime is 70137799. The next prime is 70137913. The reversal of 70137816 is 61873107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 960756 + ... + 960828.

It is an arithmetic number, because the mean of its divisors is an integer number (1159950).

Almost surely, 2^70137816 is an apocalyptic number.

70137816 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70137816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111355200).

70137816 is an abundant number, since it is smaller than the sum of its proper divisors (152572584).

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

70137816 is a wasteful number, since it uses less digits than its factorization.

70137816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 70137816 is about 8374.8322968284. The cubic root of 70137816 is about 412.3988188934.

The spelling of 70137816 in words is "seventy million, one hundred thirty-seven thousand, eight hundred sixteen".