142125322454551 has 4 divisors (see below), whose sum is σ = 142125918049912. Its totient is φ = 142124726859192.

The previous prime is 142125322454513. The next prime is 142125322454567. The reversal of 142125322454551 is 155454223521241.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 142125322454551 - 2³⁹ = 141575566640663 is a prime.

It is a super-2 number, since 2×142125322454551² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142125322454351) 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, 297439596 + ... + 297917041.

It is an arithmetic number, because the mean of its divisors is an integer number (35531479512478).

Almost surely, 2^{142125322454551} is an apocalyptic number.

142125322454551 is a deficient number, since it is larger than the sum of its proper divisors (595595361).

142125322454551 is an equidigital number, since it uses as much as digits as its factorization.

142125322454551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595595360.

The product of its digits is 1920000, while the sum is 46.

Adding to 142125322454551 its reverse (155454223521241), we get a palindrome (297579545975792).

The spelling of 142125322454551 in words is "one hundred forty-two trillion, one hundred twenty-five billion, three hundred twenty-two million, four hundred fifty-four thousand, five hundred fifty-one".