142567990 has 16 divisors (see below), whose sum is σ = 257061600. Its totient is φ = 56929600.

The previous prime is 142567979. The next prime is 142568017. The reversal of 142567990 is 99765241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5911 + ... + 17890.

It is an arithmetic number, because the mean of its divisors is an integer number (16066350).

Almost surely, 2^142567990 is an apocalyptic number.

142567990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142567990 is a deficient number, since it is larger than the sum of its proper divisors (114493610).

142567990 is a wasteful number, since it uses less digits than its factorization.

142567990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24407.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 142567990 is about 11940.1838344307. The cubic root of 142567990 is about 522.4050207768.

The spelling of 142567990 in words is "one hundred forty-two million, five hundred sixty-seven thousand, nine hundred ninety".