51700146 has 8 divisors (see below), whose sum is σ = 103400304. Its totient is φ = 17233380.

The previous prime is 51700109. The next prime is 51700163. The reversal of 51700146 is 64100715.

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

51700146 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4308340 + ... + 4308351.

It is an arithmetic number, because the mean of its divisors is an integer number (12925038).

Almost surely, 2^51700146 is an apocalyptic number.

51700146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51700146 is a wasteful number, since it uses less digits than its factorization.

51700146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8616696.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 51700146 is about 7190.2813574992. The cubic root of 51700146 is about 372.5322909412.

The spelling of 51700146 in words is "fifty-one million, seven hundred thousand, one hundred forty-six".