512157106 has 4 divisors (see below), whose sum is σ = 768235662. Its totient is φ = 256078552.

The previous prime is 512157089. The next prime is 512157109. The reversal of 512157106 is 601751215.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 501536025 + 10621081 = 22395^2 + 3259^2 .

It is not an unprimeable number, because it can be changed into a prime (512157109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128039275 + ... + 128039278.

Almost surely, 2^512157106 is an apocalyptic number.

512157106 is a deficient number, since it is larger than the sum of its proper divisors (256078556).

512157106 is a wasteful number, since it uses less digits than its factorization.

512157106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256078555.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 512157106 is about 22630.8883166349. Note that the first 3 decimals coincide. The cubic root of 512157106 is about 800.0818176737.

The spelling of 512157106 in words is "five hundred twelve million, one hundred fifty-seven thousand, one hundred six".