142290794 has 16 divisors (see below), whose sum is σ = 215281800. Its totient is φ = 70533120.

The previous prime is 142290793. The next prime is 142290817. The reversal of 142290794 is 497092241.

It can be written as a sum of positive squares in 4 ways, for example, as 98267569 + 44023225 = 9913^2 + 6635^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142290793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172904 + ... + 173724.

Almost surely, 2^142290794 is an apocalyptic number.

142290794 is a deficient number, since it is larger than the sum of its proper divisors (72991006).

142290794 is a wasteful number, since it uses less digits than its factorization.

142290794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 142290794 is about 11928.5704927288. The cubic root of 142290794 is about 522.0662291251.

The spelling of 142290794 in words is "one hundred forty-two million, two hundred ninety thousand, seven hundred ninety-four".