51142102 has 24 divisors (see below), whose sum is σ = 84776328. Its totient is φ = 23121120.

The previous prime is 51142097. The next prime is 51142123. The reversal of 51142102 is 20124115.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55933 + ... + 56839.

It is an arithmetic number, because the mean of its divisors is an integer number (3532347).

Almost surely, 2^51142102 is an apocalyptic number.

51142102 is a deficient number, since it is larger than the sum of its proper divisors (33634226).

51142102 is a wasteful number, since it uses less digits than its factorization.

51142102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164 (or 1153 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 51142102 is about 7151.3706378568. The cubic root of 51142102 is about 371.1870858180.

Adding to 51142102 its reverse (20124115), we get a palindrome (71266217).

It can be divided in two parts, 5 and 1142102, that multiplied together give a triangular number (5710510 = T₃₃₇₉).

The spelling of 51142102 in words is "fifty-one million, one hundred forty-two thousand, one hundred two".