51219146 has 8 divisors (see below), whose sum is σ = 83813184. Its totient is φ = 23281420.

The previous prime is 51219131. The next prime is 51219163. The reversal of 51219146 is 64191215.

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

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, 1164050 + ... + 1164093.

It is an arithmetic number, because the mean of its divisors is an integer number (10476648).

Almost surely, 2^51219146 is an apocalyptic number.

51219146 is a deficient number, since it is larger than the sum of its proper divisors (32594038).

51219146 is a wasteful number, since it uses less digits than its factorization.

51219146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328156.

The product of its digits is 2160, while the sum is 29.

The square root of 51219146 is about 7156.7552703722. The cubic root of 51219146 is about 371.3733862645.

The spelling of 51219146 in words is "fifty-one million, two hundred nineteen thousand, one hundred forty-six".