142308772237 has 4 divisors (see below), whose sum is σ = 142310303356. Its totient is φ = 142307241120.

The previous prime is 142308772211. The next prime is 142308772261. The reversal of 142308772237 is 732277803241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44748748521 + 97560023716 = 211539^2 + 312346^2 .

It is a cyclic number.

It is not a de Polignac number, because 142308772237 - 2¹¹ = 142308770189 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 (142308772297) 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, 616464 + ... + 815257.

It is an arithmetic number, because the mean of its divisors is an integer number (35577575839).

Almost surely, 2^142308772237 is an apocalyptic number.

It is an amenable number.

142308772237 is a deficient number, since it is larger than the sum of its proper divisors (1531119).

142308772237 is an equidigital number, since it uses as much as digits as its factorization.

142308772237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531118.

The product of its (nonzero) digits is 790272, while the sum is 46.

The spelling of 142308772237 in words is "one hundred forty-two billion, three hundred eight million, seven hundred seventy-two thousand, two hundred thirty-seven".