51154074 has 12 divisors (see below), whose sum is σ = 110833866. Its totient is φ = 17051352.

The previous prime is 51154069. The next prime is 51154079. The reversal of 51154074 is 47045115.

It is a happy number.

51154074 is a `hidden beast` number, since 51 + 1 + 540 + 74 = 666.

It is an interprime number because it is at equal distance from previous prime (51154069) and next prime (51154079).

It can be written as a sum of positive squares in only one way, i.e., 28998225 + 22155849 = 5385^2 + 4707^2 .

It is not an unprimeable number, because it can be changed into a prime (51154079) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1420929 + ... + 1420964.

Almost surely, 2^51154074 is an apocalyptic number.

51154074 is an abundant number, since it is smaller than the sum of its proper divisors (59679792).

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

51154074 is a wasteful number, since it uses less digits than its factorization.

51154074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2841901 (or 2841898 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 51154074 is about 7152.2076312143. The cubic root of 51154074 is about 371.2160476381.

Adding to 51154074 its reverse (47045115), we get a palindrome (98199189).

The spelling of 51154074 in words is "fifty-one million, one hundred fifty-four thousand, seventy-four".