51340135 has 16 divisors (see below), whose sum is σ = 76810752. Its totient is φ = 32004000.

The previous prime is 51340129. The next prime is 51340139. The reversal of 51340135 is 53104315.

It is a happy number.

It is not a de Polignac number, because 51340135 - 2²¹ = 49242983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51340139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66291 + ... + 67060.

It is an arithmetic number, because the mean of its divisors is an integer number (4800672).

Almost surely, 2^51340135 is an apocalyptic number.

51340135 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51340135 is a deficient number, since it is larger than the sum of its proper divisors (25470617).

51340135 is a wasteful number, since it uses less digits than its factorization.

51340135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133374.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 51340135 is about 7165.2030676039. The cubic root of 51340135 is about 371.6655736281.

The spelling of 51340135 in words is "fifty-one million, three hundred forty thousand, one hundred thirty-five".