142997061 has 16 divisors (see below), whose sum is σ = 194803200. Its totient is φ = 93276528.

The previous prime is 142997039. The next prime is 142997089. The reversal of 142997061 is 160799241.

It is a de Polignac number, because none of the positive numbers 2^k-142997061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142997011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38400 + ... + 41958.

It is an arithmetic number, because the mean of its divisors is an integer number (12175200).

Almost surely, 2^142997061 is an apocalyptic number.

It is an amenable number.

142997061 is a deficient number, since it is larger than the sum of its proper divisors (51806139).

142997061 is a wasteful number, since it uses less digits than its factorization.

142997061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3848.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 142997061 is about 11958.1378567066. The cubic root of 142997061 is about 522.9285706392.

The spelling of 142997061 in words is "one hundred forty-two million, nine hundred ninety-seven thousand, sixty-one".