51136346 has 8 divisors (see below), whose sum is σ = 77264820. Its totient is φ = 25381408.

The previous prime is 51136339. The next prime is 51136381. The reversal of 51136346 is 64363115.

51136346 = T₁₂₈ + T₁₂₉ + ... + T₆₇₅.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50566321 + 570025 = 7111^2 + 755^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51136346² = 5229851764463432, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93041 + ... + 93588.

Almost surely, 2^51136346 is an apocalyptic number.

51136346 is a deficient number, since it is larger than the sum of its proper divisors (26128474).

51136346 is a wasteful number, since it uses less digits than its factorization.

51136346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186768.

The product of its digits is 6480, while the sum is 29.

The square root of 51136346 is about 7150.9681861969. The cubic root of 51136346 is about 371.1731596988.

The spelling of 51136346 in words is "fifty-one million, one hundred thirty-six thousand, three hundred forty-six".