142420597 has 4 divisors (see below), whose sum is σ = 155367936. Its totient is φ = 129473260.

The previous prime is 142420583. The next prime is 142420609. The reversal of 142420597 is 795024241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142420597 - 2¹⁵ = 142387829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142420507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6473653 + ... + 6473674.

It is an arithmetic number, because the mean of its divisors is an integer number (38841984).

Almost surely, 2^142420597 is an apocalyptic number.

It is an amenable number.

142420597 is a deficient number, since it is larger than the sum of its proper divisors (12947339).

142420597 is a wasteful number, since it uses less digits than its factorization.

142420597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12947338.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 142420597 is about 11934.0100971970. The cubic root of 142420597 is about 522.2249303432.

The spelling of 142420597 in words is "one hundred forty-two million, four hundred twenty thousand, five hundred ninety-seven".