142518997 has 8 divisors (see below), whose sum is σ = 149530112. Its totient is φ = 135658800.

The previous prime is 142518991. The next prime is 142519037. The reversal of 142518997 is 799815241.

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

It is a cyclic number.

It is not a de Polignac number, because 142518997 - 2⁷ = 142518869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142518991) 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, 35793 + ... + 39574.

It is an arithmetic number, because the mean of its divisors is an integer number (18691264).

Almost surely, 2^142518997 is an apocalyptic number.

It is an amenable number.

142518997 is a deficient number, since it is larger than the sum of its proper divisors (7011115).

142518997 is an equidigital number, since it uses as much as digits as its factorization.

142518997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75459.

The product of its digits is 181440, while the sum is 46.

The square root of 142518997 is about 11938.1320565656. The cubic root of 142518997 is about 522.3451730239.

The spelling of 142518997 in words is "one hundred forty-two million, five hundred eighteen thousand, nine hundred ninety-seven".