512120090 has 8 divisors (see below), whose sum is σ = 921816180. Its totient is φ = 204848032.

The previous prime is 512120057. The next prime is 512120101. The reversal of 512120090 is 90021215.

It can be written as a sum of positive squares in 2 ways, for example, as 474063529 + 38056561 = 21773^2 + 6169^2 .

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

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, 25605995 + ... + 25606014.

Almost surely, 2^512120090 is an apocalyptic number.

512120090 is a deficient number, since it is larger than the sum of its proper divisors (409696090).

512120090 is a wasteful number, since it uses less digits than its factorization.

512120090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51212016.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 512120090 is about 22630.0704815518. The cubic root of 512120090 is about 800.0625419855.

The spelling of 512120090 in words is "five hundred twelve million, one hundred twenty thousand, ninety".