142152250154021 has 8 divisors (see below), whose sum is σ = 147063556261080. Its totient is φ = 137241577672192.

The previous prime is 142152250153997. The next prime is 142152250154041. The reversal of 142152250154021 is 120451052251241.

It can be written as a sum of positive squares in 4 ways, for example, as 3228899923396 + 138923350230625 = 1796914^2 + 11786575^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142152250154021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142152250154041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157949840 + ... + 158847273.

It is an arithmetic number, because the mean of its divisors is an integer number (18382944532635).

Almost surely, 2^{142152250154021} is an apocalyptic number.

It is an amenable number.

142152250154021 is a deficient number, since it is larger than the sum of its proper divisors (4911306107059).

142152250154021 is a wasteful number, since it uses less digits than its factorization.

142152250154021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316812615.

The product of its (nonzero) digits is 32000, while the sum is 35.

The spelling of 142152250154021 in words is "one hundred forty-two trillion, one hundred fifty-two billion, two hundred fifty million, one hundred fifty-four thousand, twenty-one".