142772418 has 24 divisors (see below), whose sum is σ = 317702268. Its totient is φ = 46304352.

The previous prime is 142772411. The next prime is 142772419. The reversal of 142772418 is 814277241.

It can be written as a sum of positive squares in 2 ways, for example, as 95121009 + 47651409 = 9753^2 + 6903^2 .

It is not an unprimeable number, because it can be changed into a prime (142772411) 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, 106521 + ... + 107852.

Almost surely, 2^142772418 is an apocalyptic number.

142772418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

142772418 is an abundant number, since it is smaller than the sum of its proper divisors (174929850).

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

142772418 is a wasteful number, since it uses less digits than its factorization.

142772418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214418 (or 214415 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 142772418 is about 11948.7412726195. The cubic root of 142772418 is about 522.6545934198.

The spelling of 142772418 in words is "one hundred forty-two million, seven hundred seventy-two thousand, four hundred eighteen".