213458542 has 16 divisors (see below), whose sum is σ = 350842752. Its totient is φ = 96596920.

The previous prime is 213458527. The next prime is 213458593. The reversal of 213458542 is 245854312.

It is a junction number, because it is equal to n+sod(n) for n = 213458498 and 213458507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16378 + ... + 26365.

It is an arithmetic number, because the mean of its divisors is an integer number (21927672).

Almost surely, 2^213458542 is an apocalyptic number.

213458542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213458542 is a deficient number, since it is larger than the sum of its proper divisors (137384210).

213458542 is a wasteful number, since it uses less digits than its factorization.

213458542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42983.

The product of its digits is 38400, while the sum is 34.

The square root of 213458542 is about 14610.2204637712. The cubic root of 213458542 is about 597.6375080772.

The spelling of 213458542 in words is "two hundred thirteen million, four hundred fifty-eight thousand, five hundred forty-two".