142637119 has 4 divisors (see below), whose sum is σ = 143026144. Its totient is φ = 142248096.

The previous prime is 142637113. The next prime is 142637137. The reversal of 142637119 is 911736241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142637119 - 2³ = 142637111 is a prime.

It is a super-2 number, since 2×142637119² = 40690695433240322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142637111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193962 + ... + 194695.

It is an arithmetic number, because the mean of its divisors is an integer number (35756536).

Almost surely, 2^142637119 is an apocalyptic number.

142637119 is a deficient number, since it is larger than the sum of its proper divisors (389025).

142637119 is an equidigital number, since it uses as much as digits as its factorization.

142637119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389024.

The product of its digits is 9072, while the sum is 34.

The square root of 142637119 is about 11943.0782882806. The cubic root of 142637119 is about 522.4894424887.

The spelling of 142637119 in words is "one hundred forty-two million, six hundred thirty-seven thousand, one hundred nineteen".