142022541631 has 16 divisors (see below), whose sum is σ = 143481881088. Its totient is φ = 140571781600.

The previous prime is 142022541623. The next prime is 142022541643. The reversal of 142022541631 is 136145220241.

It is a cyclic number.

It is not a de Polignac number, because 142022541631 - 2³ = 142022541623 is a prime.

It is a super-4 number, since 4×142022541631⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142022541593 and 142022541602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142022541131) 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, 73547736 + ... + 73549666.

It is an arithmetic number, because the mean of its divisors is an integer number (8967617568).

Almost surely, 2^142022541631 is an apocalyptic number.

142022541631 is a deficient number, since it is larger than the sum of its proper divisors (1459339457).

142022541631 is a wasteful number, since it uses less digits than its factorization.

142022541631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 142022541631 its reverse (136145220241), we get a palindrome (278167761872).

The spelling of 142022541631 in words is "one hundred forty-two billion, twenty-two million, five hundred forty-one thousand, six hundred thirty-one".