212361601 has 4 divisors (see below), whose sum is σ = 212593600. Its totient is φ = 212129604.

The previous prime is 212361593. The next prime is 212361607. The reversal of 212361601 is 106163212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212361601 - 2³ = 212361593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212361607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114621 + ... + 116458.

It is an arithmetic number, because the mean of its divisors is an integer number (53148400).

Almost surely, 2^212361601 is an apocalyptic number.

It is an amenable number.

212361601 is a deficient number, since it is larger than the sum of its proper divisors (231999).

212361601 is an equidigital number, since it uses as much as digits as its factorization.

212361601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231998.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 212361601 is about 14572.6319173991. The cubic root of 212361601 is about 596.6120173342.

The spelling of 212361601 in words is "two hundred twelve million, three hundred sixty-one thousand, six hundred one".