142512523221461 has 16 divisors (see below), whose sum is σ = 152565660518400. Its totient is φ = 132714930200688.

The previous prime is 142512523221353. The next prime is 142512523221491. The reversal of 142512523221461 is 164122325215241.

It is not a de Polignac number, because 142512523221461 - 2²² = 142512519027157 is a prime.

It is a super-2 number, since 2×142512523221461² (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 (142512523221491) 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, 13228796 + ... + 21448218.

It is an arithmetic number, because the mean of its divisors is an integer number (9535353782400).

Almost surely, 2^{142512523221461} is an apocalyptic number.

It is an amenable number.

142512523221461 is a deficient number, since it is larger than the sum of its proper divisors (10053137296939).

142512523221461 is a wasteful number, since it uses less digits than its factorization.

142512523221461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8234968.

The product of its digits is 230400, while the sum is 41.

The spelling of 142512523221461 in words is "one hundred forty-two trillion, five hundred twelve billion, five hundred twenty-three million, two hundred twenty-one thousand, four hundred sixty-one".