213554131 has 8 divisors (see below), whose sum is σ = 246343680. Its totient is φ = 181335048.

The previous prime is 213554027. The next prime is 213554137. The reversal of 213554131 is 131455312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213554131 - 2¹⁷ = 213423059 is a prime.

It is a super-2 number, since 2×213554131² = 91210733734330322, 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 = 213554096 and 213554105.

It is not an unprimeable number, because it can be changed into a prime (213554137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141811 + ... + 143308.

It is an arithmetic number, because the mean of its divisors is an integer number (30792960).

Almost surely, 2^213554131 is an apocalyptic number.

213554131 is a deficient number, since it is larger than the sum of its proper divisors (32789549).

213554131 is a wasteful number, since it uses less digits than its factorization.

213554131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285233.

The product of its digits is 1800, while the sum is 25.

The square root of 213554131 is about 14613.4914034942. The cubic root of 213554131 is about 597.7267042366.

The spelling of 213554131 in words is "two hundred thirteen million, five hundred fifty-four thousand, one hundred thirty-one".