70145418 has 16 divisors (see below), whose sum is σ = 160332480. Its totient is φ = 20041536.

The previous prime is 70145407. The next prime is 70145429. The reversal of 70145418 is 81454107.

It is an interprime number because it is at equal distance from previous prime (70145407) and next prime (70145429).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835023 + ... + 835106.

It is an arithmetic number, because the mean of its divisors is an integer number (10020780).

Almost surely, 2^70145418 is an apocalyptic number.

70145418 is an abundant number, since it is smaller than the sum of its proper divisors (90187062).

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

70145418 is a wasteful number, since it uses less digits than its factorization.

70145418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670141.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 70145418 is about 8375.2861443655. The cubic root of 70145418 is about 412.4137178582.

The spelling of 70145418 in words is "seventy million, one hundred forty-five thousand, four hundred eighteen".