145530221415 has 8 divisors (see below), whose sum is σ = 232848354288. Its totient is φ = 77616118080.

The previous prime is 145530221411. The next prime is 145530221453. The reversal of 145530221415 is 514122035541.

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

It is not a de Polignac number, because 145530221415 - 2² = 145530221411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145530221411) 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, 4851007366 + ... + 4851007395.

It is an arithmetic number, because the mean of its divisors is an integer number (29106044286).

Almost surely, 2^145530221415 is an apocalyptic number.

145530221415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145530221415 is a deficient number, since it is larger than the sum of its proper divisors (87318132873).

145530221415 is an equidigital number, since it uses as much as digits as its factorization.

145530221415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9702014769.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 145530221415 its reverse (514122035541), we get a palindrome (659652256956).

The spelling of 145530221415 in words is "one hundred forty-five billion, five hundred thirty million, two hundred twenty-one thousand, four hundred fifteen".