142142497 has 8 divisors (see below), whose sum is σ = 164737152. Its totient is φ = 120120000.

The previous prime is 142142479. The next prime is 142142537. The reversal of 142142497 is 794241241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142142497 - 2²⁷ = 7924769 is a prime.

It is a super-4 number, since 4×142142497⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142140497) 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, 142504 + ... + 143497.

It is an arithmetic number, because the mean of its divisors is an integer number (20592144).

Almost surely, 2^142142497 is an apocalyptic number.

It is an amenable number.

142142497 is a deficient number, since it is larger than the sum of its proper divisors (22594655).

142142497 is an equidigital number, since it uses as much as digits as its factorization.

142142497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286079.

The product of its digits is 16128, while the sum is 34.

The square root of 142142497 is about 11922.3528298738. The cubic root of 142142497 is about 521.8847983961.

The spelling of 142142497 in words is "one hundred forty-two million, one hundred forty-two thousand, four hundred ninety-seven".