145307527760221 has 8 divisors (see below), whose sum is σ = 152955595227200. Its totient is φ = 137659490578080.

The previous prime is 145307527760137. The next prime is 145307527760273. The reversal of 145307527760221 is 122067725703541.

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 145307527760221 - 2³⁷ = 145170088806749 is a prime.

It is a super-2 number, since 2×145307527760221² (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 (145307527760321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2629816 + ... + 17249086.

It is an arithmetic number, because the mean of its divisors is an integer number (19119449403400).

Almost surely, 2^{145307527760221} is an apocalyptic number.

It is an amenable number.

145307527760221 is a deficient number, since it is larger than the sum of its proper divisors (7648067466979).

145307527760221 is a wasteful number, since it uses less digits than its factorization.

145307527760221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15142419.

The product of its (nonzero) digits is 4939200, while the sum is 52.

The spelling of 145307527760221 in words is "one hundred forty-five trillion, three hundred seven billion, five hundred twenty-seven million, seven hundred sixty thousand, two hundred twenty-one".