142856497 has 8 divisors (see below), whose sum is σ = 171857600. Its totient is φ = 116003664.

The previous prime is 142856437. The next prime is 142856501. The reversal of 142856497 is 794658241.

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

It is not a de Polignac number, because 142856497 - 2²³ = 134467889 is a prime.

It is a super-2 number, since 2×142856497² = 40815957470222018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142856437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536922 + ... + 537187.

It is an arithmetic number, because the mean of its divisors is an integer number (21482200).

Almost surely, 2^142856497 is an apocalyptic number.

It is an amenable number.

142856497 is a deficient number, since it is larger than the sum of its proper divisors (29001103).

142856497 is a wasteful number, since it uses less digits than its factorization.

142856497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074135.

The product of its digits is 483840, while the sum is 46.

The square root of 142856497 is about 11952.2590751707. The cubic root of 142856497 is about 522.7571707773.

The spelling of 142856497 in words is "one hundred forty-two million, eight hundred fifty-six thousand, four hundred ninety-seven".