142956774 has 48 divisors (see below), whose sum is σ = 330417360. Its totient is φ = 44513280.

The previous prime is 142956773. The next prime is 142956787. The reversal of 142956774 is 477659241.

142956774 is a `hidden beast` number, since 14 + 2 + 9 + 567 + 74 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142956773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40854 + ... + 44214.

It is an arithmetic number, because the mean of its divisors is an integer number (6883695).

Almost surely, 2^142956774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142956774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165208680).

142956774 is an abundant number, since it is smaller than the sum of its proper divisors (187460586).

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

142956774 is a wasteful number, since it uses less digits than its factorization.

142956774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3525 (or 3522 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 142956774 is about 11956.4532366417. The cubic root of 142956774 is about 522.8794572706.

The spelling of 142956774 in words is "one hundred forty-two million, nine hundred fifty-six thousand, seven hundred seventy-four".