70172146 has 16 divisors (see below), whose sum is σ = 115603200. Its totient is φ = 31680880.

The previous prime is 70172131. The next prime is 70172153. The reversal of 70172146 is 64127107.

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, 7426 + ... + 13981.

It is an arithmetic number, because the mean of its divisors is an integer number (7225200).

Almost surely, 2^70172146 is an apocalyptic number.

70172146 is a deficient number, since it is larger than the sum of its proper divisors (45431054).

70172146 is a wasteful number, since it uses less digits than its factorization.

70172146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21569.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 70172146 is about 8376.8816393692. The cubic root of 70172146 is about 412.4660928358.

The spelling of 70172146 in words is "seventy million, one hundred seventy-two thousand, one hundred forty-six".