142312776 has 64 divisors (see below), whose sum is σ = 372971520. Its totient is φ = 45165120.

The previous prime is 142312759. The next prime is 142312813. The reversal of 142312776 is 677213241.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155761 + ... + 156671.

It is an arithmetic number, because the mean of its divisors is an integer number (5827680).

Almost surely, 2^142312776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142312776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186485760).

142312776 is an abundant number, since it is smaller than the sum of its proper divisors (230658744).

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

142312776 is a wasteful number, since it uses less digits than its factorization.

142312776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226 (or 1222 counting only the distinct ones).

The product of its digits is 14112, while the sum is 33.

The square root of 142312776 is about 11929.4918584154. The cubic root of 142312776 is about 522.0931117941.

The spelling of 142312776 in words is "one hundred forty-two million, three hundred twelve thousand, seven hundred seventy-six".