70145454 has 32 divisors (see below), whose sum is σ = 150192000. Its totient is φ = 21773664.

The previous prime is 70145441. The next prime is 70145477. The reversal of 70145454 is 45454107.

It is a super-2 number, since 2×70145454² = 9840769433732232, which contains 22 as substring.

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

It is a congruent number.

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, 1512 + ... + 11940.

It is an arithmetic number, because the mean of its divisors is an integer number (4693500).

Almost surely, 2^70145454 is an apocalyptic number.

70145454 is an abundant number, since it is smaller than the sum of its proper divisors (80046546).

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

70145454 is a wasteful number, since it uses less digits than its factorization.

70145454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10512.

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 70145454 is about 8375.2882935455. The cubic root of 70145454 is about 412.4137884111.

The spelling of 70145454 in words is "seventy million, one hundred forty-five thousand, four hundred fifty-four".