216365142 has 16 divisors (see below), whose sum is σ = 494548992. Its totient is φ = 61818600.

The previous prime is 216365131. The next prime is 216365153. The reversal of 216365142 is 241563612.

It is an interprime number because it is at equal distance from previous prime (216365131) and next prime (216365153).

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, 2575734 + ... + 2575817.

It is an arithmetic number, because the mean of its divisors is an integer number (30909312).

Almost surely, 2^216365142 is an apocalyptic number.

216365142 is an abundant number, since it is smaller than the sum of its proper divisors (278183850).

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

216365142 is a wasteful number, since it uses less digits than its factorization.

216365142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5151563.

The product of its digits is 8640, while the sum is 30.

The square root of 216365142 is about 14709.3555943148. The cubic root of 216365142 is about 600.3379041101.

The spelling of 216365142 in words is "two hundred sixteen million, three hundred sixty-five thousand, one hundred forty-two".