142923790 has 16 divisors (see below), whose sum is σ = 258559200. Its totient is φ = 56881440.

The previous prime is 142923769. The next prime is 142923791. The reversal of 142923790 is 97329241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142923791) 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, 33921 + ... + 37900.

It is an arithmetic number, because the mean of its divisors is an integer number (16159950).

Almost surely, 2^142923790 is an apocalyptic number.

142923790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142923790 is a deficient number, since it is larger than the sum of its proper divisors (115635410).

142923790 is a wasteful number, since it uses less digits than its factorization.

142923790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72027.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 142923790 is about 11955.0738182581. The cubic root of 142923790 is about 522.8392400261.

The spelling of 142923790 in words is "one hundred forty-two million, nine hundred twenty-three thousand, seven hundred ninety".