142452121 has 8 divisors (see below), whose sum is σ = 162896384. Its totient is φ = 122031360.

The previous prime is 142452113. The next prime is 142452131. The reversal of 142452121 is 121254241.

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 142452121 - 2³ = 142452113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142452092 and 142452101.

It is not an unprimeable number, because it can be changed into a prime (142452131) 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, 9976 + ... + 19606.

It is an arithmetic number, because the mean of its divisors is an integer number (20362048).

Almost surely, 2^142452121 is an apocalyptic number.

It is an amenable number.

142452121 is a deficient number, since it is larger than the sum of its proper divisors (20444263).

142452121 is an equidigital number, since it uses as much as digits as its factorization.

142452121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11751.

The product of its digits is 640, while the sum is 22.

The square root of 142452121 is about 11935.3307872049. The cubic root of 142452121 is about 522.2634580201.

The spelling of 142452121 in words is "one hundred forty-two million, four hundred fifty-two thousand, one hundred twenty-one".