142425456521 has 8 divisors (see below), whose sum is σ = 150330046080. Its totient is φ = 134561718288.

The previous prime is 142425456491. The next prime is 142425456533. The reversal of 142425456521 is 125654524241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142425456521 - 2¹⁴ = 142425440137 is a prime.

It is a super-2 number, since 2×142425456521² (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 (142425456571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10205666 + ... + 10219611.

It is an arithmetic number, because the mean of its divisors is an integer number (18791255760).

Almost surely, 2^142425456521 is an apocalyptic number.

It is an amenable number.

142425456521 is a deficient number, since it is larger than the sum of its proper divisors (7904589559).

142425456521 is a wasteful number, since it uses less digits than its factorization.

142425456521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20425663.

The product of its digits is 384000, while the sum is 41.

The spelling of 142425456521 in words is "one hundred forty-two billion, four hundred twenty-five million, four hundred fifty-six thousand, five hundred twenty-one".