51156135 has 24 divisors (see below), whose sum is σ = 88838880. Its totient is φ = 27231552.

The previous prime is 51156121. The next prime is 51156143. The reversal of 51156135 is 53165115.

It is not a de Polignac number, because 51156135 - 2¹¹ = 51154087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51156099 and 51156108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40737 + ... + 41973.

It is an arithmetic number, because the mean of its divisors is an integer number (3701620).

Almost surely, 2^51156135 is an apocalyptic number.

51156135 is a deficient number, since it is larger than the sum of its proper divisors (37682745).

51156135 is a wasteful number, since it uses less digits than its factorization.

51156135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167 (or 2164 counting only the distinct ones).

The product of its digits is 2250, while the sum is 27.

The square root of 51156135 is about 7152.3517111507. The cubic root of 51156135 is about 371.2210330084.

The spelling of 51156135 in words is "fifty-one million, one hundred fifty-six thousand, one hundred thirty-five".