212361523929 has 15 divisors (see below), whose sum is σ = 317237607973. Its totient is φ = 141571584324.

The previous prime is 212361523903. The next prime is 212361523937. The reversal of 212361523929 is 929325163212.

The square root of 212361523929 is 460827.

It is a perfect power (a square), and thus also a powerful number.

212361523929 is a `hidden beast` number, since 2 + 1 + 2 + 3 + 615 + 2 + 3 + 9 + 29 = 666.

It is not a de Polignac number, because 212361523929 - 2¹⁷ = 212361392857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212361523949) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 4121842 + ... + 4173044.

Almost surely, 2^212361523929 is an apocalyptic number.

212361523929 is the 460827-th square number.

212361523929 is the 230414-th centered octagonal number.

It is an amenable number.

212361523929 is a deficient number, since it is larger than the sum of its proper divisors (104876084044).

212361523929 is an frugal number, since it uses more digits than its factorization.

212361523929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102418 (or 51206 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The spelling of 212361523929 in words is "two hundred twelve billion, three hundred sixty-one million, five hundred twenty-three thousand, nine hundred twenty-nine".