51154136 has 32 divisors (see below), whose sum is σ = 105613200. Its totient is φ = 23034240.

The previous prime is 51154111. The next prime is 51154157. The reversal of 51154136 is 63145115.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6926 + ... + 12258.

Almost surely, 2^51154136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51154136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52806600).

51154136 is an abundant number, since it is smaller than the sum of its proper divisors (54459064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51154136 is a wasteful number, since it uses less digits than its factorization.

51154136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5459 (or 5455 counting only the distinct ones).

The product of its digits is 1800, while the sum is 26.

The square root of 51154136 is about 7152.2119655391. The cubic root of 51154136 is about 371.2161976124.

The spelling of 51154136 in words is "fifty-one million, one hundred fifty-four thousand, one hundred thirty-six".