145413430221 has 8 divisors (see below), whose sum is σ = 193886456544. Its totient is φ = 96941345360.

The previous prime is 145413430187. The next prime is 145413430223. The reversal of 145413430221 is 122034314541.

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 145413430221 - 2¹⁴ = 145413413837 is a prime.

It is a super-2 number, since 2×145413430221² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145413430223) 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, 297151 + ... + 615731.

It is an arithmetic number, because the mean of its divisors is an integer number (24235807068).

Almost surely, 2^145413430221 is an apocalyptic number.

It is an amenable number.

145413430221 is a deficient number, since it is larger than the sum of its proper divisors (48473026323).

145413430221 is a wasteful number, since it uses less digits than its factorization.

145413430221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470731.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 145413430221 its reverse (122034314541), we get a palindrome (267447744762).

The spelling of 145413430221 in words is "one hundred forty-five billion, four hundred thirteen million, four hundred thirty thousand, two hundred twenty-one".