213204975 has 12 divisors (see below), whose sum is σ = 352499016. Its totient is φ = 113709280.

The previous prime is 213204941. The next prime is 213204991. The reversal of 213204975 is 579402312.

It is not a de Polignac number, because 213204975 - 2⁶ = 213204911 is a prime.

It is a super-2 number, since 2×213204975² = 90912722729501250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1421292 + ... + 1421441.

It is an arithmetic number, because the mean of its divisors is an integer number (29374918).

Almost surely, 2^213204975 is an apocalyptic number.

213204975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

213204975 is a deficient number, since it is larger than the sum of its proper divisors (139294041).

213204975 is a wasteful number, since it uses less digits than its factorization.

213204975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842746 (or 2842741 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 213204975 is about 14601.5401584901. The cubic root of 213204975 is about 597.4007701555.

The spelling of 213204975 in words is "two hundred thirteen million, two hundred four thousand, nine hundred seventy-five".