611912142 has 24 divisors (see below), whose sum is σ = 1361643816. Its totient is φ = 198457776.

The previous prime is 611912137. The next prime is 611912143. The reversal of 611912142 is 241219116.

611912142 is a `hidden beast` number, since 611 + 9 + 1 + 2 + 1 + 42 = 666.

It is a super-3 number, since 3×611912142³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611912143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 458728 + ... + 460059.

It is an arithmetic number, because the mean of its divisors is an integer number (56735159).

Almost surely, 2^611912142 is an apocalyptic number.

611912142 is an abundant number, since it is smaller than the sum of its proper divisors (749731674).

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

611912142 is a wasteful number, since it uses less digits than its factorization.

611912142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918832 (or 918829 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 611912142 is about 24736.8579653925. The cubic root of 611912142 is about 848.9778449021.

The spelling of 611912142 in words is "six hundred eleven million, nine hundred twelve thousand, one hundred forty-two".