142452544531 has 48 divisors (see below), whose sum is σ = 167078212128. Its totient is φ = 120418099200.

The previous prime is 142452544529. The next prime is 142452544543. The reversal of 142452544531 is 135445254241.

It is not a de Polignac number, because 142452544531 - 2¹ = 142452544529 is a prime.

It is a super-2 number, since 2×142452544531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142452544571) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 194341441 + ... + 194342173.

It is an arithmetic number, because the mean of its divisors is an integer number (3480796086).

Almost surely, 2^142452544531 is an apocalyptic number.

142452544531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142452544531 is a deficient number, since it is larger than the sum of its proper divisors (24625667597).

142452544531 is a wasteful number, since it uses less digits than its factorization.

142452544531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432 (or 1415 counting only the distinct ones).

The product of its digits is 384000, while the sum is 40.

Adding to 142452544531 its reverse (135445254241), we get a palindrome (277897798772).

The spelling of 142452544531 in words is "one hundred forty-two billion, four hundred fifty-two million, five hundred forty-four thousand, five hundred thirty-one".