612140214 has 32 divisors (see below), whose sum is σ = 1472820480. Its totient is φ = 165691872.

The previous prime is 612140213. The next prime is 612140237. The reversal of 612140214 is 412041216.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612140213) 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, 382749 + ... + 384344.

It is an arithmetic number, because the mean of its divisors is an integer number (46025640).

Almost surely, 2^612140214 is an apocalyptic number.

612140214 is an abundant number, since it is smaller than the sum of its proper divisors (860680266).

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

612140214 is a wasteful number, since it uses less digits than its factorization.

612140214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767124.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 612140214 is about 24741.4674989177. The cubic root of 612140214 is about 849.0833088570.

The spelling of 612140214 in words is "six hundred twelve million, one hundred forty thousand, two hundred fourteen".