51147122 has 32 divisors (see below), whose sum is σ = 84913920. Its totient is φ = 22962240.

The previous prime is 51147079. The next prime is 51147127. The reversal of 51147122 is 22174115.

It is not an unprimeable number, because it can be changed into a prime (51147127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190004 + ... + 190272.

It is an arithmetic number, because the mean of its divisors is an integer number (2653560).

Almost surely, 2^51147122 is an apocalyptic number.

51147122 is a deficient number, since it is larger than the sum of its proper divisors (33766798).

51147122 is a wasteful number, since it uses less digits than its factorization.

51147122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458.

The product of its digits is 560, while the sum is 23.

The square root of 51147122 is about 7151.7216109130. The cubic root of 51147122 is about 371.1992303990.

The spelling of 51147122 in words is "fifty-one million, one hundred forty-seven thousand, one hundred twenty-two".