213712842 has 16 divisors (see below), whose sum is σ = 488486592. Its totient is φ = 61060800.

The previous prime is 213712813. The next prime is 213712843. The reversal of 213712842 is 248217312.

213712842 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (213712843) 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 7 ways as a sum of consecutive naturals, for example, 2544159 + ... + 2544242.

It is an arithmetic number, because the mean of its divisors is an integer number (30530412).

Almost surely, 2^213712842 is an apocalyptic number.

213712842 is an abundant number, since it is smaller than the sum of its proper divisors (274773750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213712842 is a wasteful number, since it uses less digits than its factorization.

213712842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5088413.

The product of its digits is 5376, while the sum is 30.

The square root of 213712842 is about 14618.9206851942. The cubic root of 213712842 is about 597.8747421309.

The spelling of 213712842 in words is "two hundred thirteen million, seven hundred twelve thousand, eight hundred forty-two".