142310997 has 6 divisors (see below), whose sum is σ = 205560342. Its totient is φ = 94873992.

The previous prime is 142310983. The next prime is 142311023. The reversal of 142310997 is 799013241.

It can be written as a sum of positive squares in only one way, i.e., 121022001 + 21288996 = 11001^2 + 4614^2 .

It is not a de Polignac number, because 142310997 - 2⁴ = 142310981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142310297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7906158 + ... + 7906175.

It is an arithmetic number, because the mean of its divisors is an integer number (34260057).

Almost surely, 2^142310997 is an apocalyptic number.

It is an amenable number.

142310997 is a deficient number, since it is larger than the sum of its proper divisors (63249345).

142310997 is a wasteful number, since it uses less digits than its factorization.

142310997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15812339 (or 15812336 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 142310997 is about 11929.4172950736. The cubic root of 142310997 is about 522.0909362866.

The spelling of 142310997 in words is "one hundred forty-two million, three hundred ten thousand, nine hundred ninety-seven".