51740147 has 16 divisors (see below), whose sum is σ = 56140800. Its totient is φ = 47567520.

The previous prime is 51740141. The next prime is 51740149. The reversal of 51740147 is 74104715.

It is a cyclic number.

It is not a de Polignac number, because 51740147 - 2⁴ = 51740131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51740141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59804 + ... + 60662.

It is an arithmetic number, because the mean of its divisors is an integer number (3508800).

Almost surely, 2^51740147 is an apocalyptic number.

51740147 is a deficient number, since it is larger than the sum of its proper divisors (4400653).

51740147 is a wasteful number, since it uses less digits than its factorization.

51740147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 51740147 is about 7193.0624215281. The cubic root of 51740147 is about 372.6283436850.

The spelling of 51740147 in words is "fifty-one million, seven hundred forty thousand, one hundred forty-seven".