213062131 has 4 divisors (see below), whose sum is σ = 215759200. Its totient is φ = 210365064.

The previous prime is 213062099. The next prime is 213062137. The reversal of 213062131 is 131260312.

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

It is a cyclic number.

It is not a de Polignac number, because 213062131 - 2⁵ = 213062099 is a prime.

It is a super-2 number, since 2×213062131² = 90790943332522322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213062099 and 213062108.

It is not an unprimeable number, because it can be changed into a prime (213062137) 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, 1348416 + ... + 1348573.

It is an arithmetic number, because the mean of its divisors is an integer number (53939800).

Almost surely, 2^213062131 is an apocalyptic number.

213062131 is a deficient number, since it is larger than the sum of its proper divisors (2697069).

213062131 is an equidigital number, since it uses as much as digits as its factorization.

213062131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697068.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 213062131 is about 14596.6479371121. The cubic root of 213062131 is about 597.2673239567.

It can be divided in two parts, 2130 and 62131, that added together give a triangular number (64261 = T₃₅₈).

The spelling of 213062131 in words is "two hundred thirteen million, sixty-two thousand, one hundred thirty-one".