142744122361 has 16 divisors (see below), whose sum is σ = 147072593808. Its totient is φ = 138441139200.

The previous prime is 142744122329. The next prime is 142744122373. The reversal of 142744122361 is 163221447241.

142744122361 = 267155² + 267156².

It can be written as a sum of positive squares in 8 ways, for example, as 71723961 + 142672398400 = 8469^2 + 377720^2 .

It is a cyclic number.

It is not a de Polignac number, because 142744122361 - 2⁵ = 142744122329 is a prime.

It is a super-2 number, since 2×142744122361² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142744122361.

It is not an unprimeable number, because it can be changed into a prime (142744120361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16438941 + ... + 16447621.

It is an arithmetic number, because the mean of its divisors is an integer number (9192037113).

Almost surely, 2^142744122361 is an apocalyptic number.

142744122361 is the 267156-th centered square number.

It is an amenable number.

142744122361 is a deficient number, since it is larger than the sum of its proper divisors (4328471447).

142744122361 is an equidigital number, since it uses as much as digits as its factorization.

142744122361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10092.

The product of its digits is 64512, while the sum is 37.

The spelling of 142744122361 in words is "one hundred forty-two billion, seven hundred forty-four million, one hundred twenty-two thousand, three hundred sixty-one".