213155241 has 16 divisors (see below), whose sum is σ = 311846976. Its totient is φ = 128696256.

The previous prime is 213155233. The next prime is 213155251. The reversal of 213155241 is 142551312.

It is a happy number.

It is not a de Polignac number, because 213155241 - 2³ = 213155233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213155251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49495 + ... + 53628.

It is an arithmetic number, because the mean of its divisors is an integer number (19490436).

Almost surely, 2^213155241 is an apocalyptic number.

It is an amenable number.

213155241 is a deficient number, since it is larger than the sum of its proper divisors (98691735).

213155241 is a wasteful number, since it uses less digits than its factorization.

213155241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103192.

The product of its digits is 1200, while the sum is 24.

The square root of 213155241 is about 14599.8370196383. The cubic root of 213155241 is about 597.3543149537.

The spelling of 213155241 in words is "two hundred thirteen million, one hundred fifty-five thousand, two hundred forty-one".