142777912 has 16 divisors (see below), whose sum is σ = 267945840. Its totient is φ = 71325696.

The previous prime is 142777907. The next prime is 142777967. The reversal of 142777912 is 219777241.

It is a super-3 number, since 3×142777912³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2488 + ... + 17080.

It is an arithmetic number, because the mean of its divisors is an integer number (16746615).

Almost surely, 2^142777912 is an apocalyptic number.

It is an amenable number.

142777912 is a deficient number, since it is larger than the sum of its proper divisors (125167928).

142777912 is a wasteful number, since it uses less digits than its factorization.

142777912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15822 (or 15818 counting only the distinct ones).

The product of its digits is 49392, while the sum is 40.

The square root of 142777912 is about 11948.9711691007. The cubic root of 142777912 is about 522.6612973932.

It can be divided in two parts, 14277791 and 2, that multiplied together give a palindrome (28555582).

The spelling of 142777912 in words is "one hundred forty-two million, seven hundred seventy-seven thousand, nine hundred twelve".