70145910 has 144 divisors (see below), whose sum is σ = 205410816. Its totient is φ = 16547328.

The previous prime is 70145903. The next prime is 70145921. The reversal of 70145910 is 1954107.

70145910 is a `hidden beast` number, since 70 + 1 + 4 + 591 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 552267 + ... + 552393.

It is an arithmetic number, because the mean of its divisors is an integer number (1426464).

Almost surely, 2^70145910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70145910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102705408).

70145910 is an abundant number, since it is smaller than the sum of its proper divisors (135264906).

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

70145910 is a wasteful number, since it uses less digits than its factorization.

70145910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 70145910 is about 8375.3155164447. The cubic root of 70145910 is about 412.4146820793.

The spelling of 70145910 in words is "seventy million, one hundred forty-five thousand, nine hundred ten".