70394129 has 8 divisors (see below), whose sum is σ = 76071912. Its totient is φ = 64753920.

The previous prime is 70394117. The next prime is 70394131. The reversal of 70394129 is 92149307.

It can be written as a sum of positive squares in 4 ways, for example, as 32547025 + 37847104 = 5705^2 + 6152^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70394129 - 2⁴ = 70394113 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (70394189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5432 + ... + 13049.

It is an arithmetic number, because the mean of its divisors is an integer number (9508989).

Almost surely, 2^70394129 is an apocalyptic number.

It is an amenable number.

70394129 is a deficient number, since it is larger than the sum of its proper divisors (5677783).

70394129 is a wasteful number, since it uses less digits than its factorization.

70394129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18787.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 70394129 is about 8390.1209168879. The cubic root of 70394129 is about 412.9005676124.

The spelling of 70394129 in words is "seventy million, three hundred ninety-four thousand, one hundred twenty-nine".