213374331 has 10 divisors (see below), whose sum is σ = 318744492. Its totient is φ = 142249500.

The previous prime is 213374323. The next prime is 213374341. The reversal of 213374331 is 133473312.

It is not a de Polignac number, because 213374331 - 2³ = 213374323 is a prime.

It is a super-2 number, since 2×213374331² = 91057210259395122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 213374295 and 213374304.

It is not an unprimeable number, because it can be changed into a prime (213374321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1317045 + ... + 1317206.

Almost surely, 2^213374331 is an apocalyptic number.

213374331 is a deficient number, since it is larger than the sum of its proper divisors (105370161).

213374331 is an equidigital number, since it uses as much as digits as its factorization.

213374331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634263 (or 2634254 counting only the distinct ones).

The product of its digits is 4536, while the sum is 27.

The square root of 213374331 is about 14607.3382585603. The cubic root of 213374331 is about 597.5589069097.

It can be divided in two parts, 213 and 374331, that added together give a square (374544 = 612²).

The spelling of 213374331 in words is "two hundred thirteen million, three hundred seventy-four thousand, three hundred thirty-one".