142432561497 has 4 divisors (see below), whose sum is σ = 189910082000. Its totient is φ = 94955040996.

The previous prime is 142432561489. The next prime is 142432561501. The reversal of 142432561497 is 794165234241.

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 not a de Polignac number, because 142432561497 - 2³ = 142432561489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142432562497) 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, 23738760247 + ... + 23738760252.

It is an arithmetic number, because the mean of its divisors is an integer number (47477520500).

Almost surely, 2^142432561497 is an apocalyptic number.

It is an amenable number.

142432561497 is a deficient number, since it is larger than the sum of its proper divisors (47477520503).

142432561497 is an equidigital number, since it uses as much as digits as its factorization.

142432561497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47477520502.

The product of its digits is 1451520, while the sum is 48.

The spelling of 142432561497 in words is "one hundred forty-two billion, four hundred thirty-two million, five hundred sixty-one thousand, four hundred ninety-seven".