51145746 has 8 divisors (see below), whose sum is σ = 102291504. Its totient is φ = 17048580.

The previous prime is 51145711. The next prime is 51145751. The reversal of 51145746 is 64754115.

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

51145746 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, 4262140 + ... + 4262151.

It is an arithmetic number, because the mean of its divisors is an integer number (12786438).

Almost surely, 2^51145746 is an apocalyptic number.

51145746 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.

51145746 is a wasteful number, since it uses less digits than its factorization.

51145746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8524296.

The product of its digits is 16800, while the sum is 33.

The square root of 51145746 is about 7151.6254096534. The cubic root of 51145746 is about 371.1959016049.

The spelling of 51145746 in words is "fifty-one million, one hundred forty-five thousand, seven hundred forty-six".