145000253142321 has 16 divisors (see below), whose sum is σ = 193682568036480. Its totient is φ = 96492472053120.

The previous prime is 145000253142317. The next prime is 145000253142359. The reversal of 145000253142321 is 123241352000541.

It is not a de Polignac number, because 145000253142321 - 2² = 145000253142317 is a prime.

It is a super-2 number, since 2×145000253142321² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145000253141321) 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, 3842181 + ... + 17457458.

It is an arithmetic number, because the mean of its divisors is an integer number (12105160502280).

Almost surely, 2^{145000253142321} is an apocalyptic number.

It is an amenable number.

145000253142321 is a deficient number, since it is larger than the sum of its proper divisors (48682314894159).

145000253142321 is a wasteful number, since it uses less digits than its factorization.

145000253142321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21303736.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 145000253142321 in words is "one hundred forty-five trillion, two hundred fifty-three million, one hundred forty-two thousand, three hundred twenty-one".