145530715 has 8 divisors (see below), whose sum is σ = 190513008. Its totient is φ = 105840480.

The previous prime is 145530703. The next prime is 145530733. The reversal of 145530715 is 517035541.

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

It is not a de Polignac number, because 145530715 - 2¹⁷ = 145399643 is a prime.

It is a super-2 number, since 2×145530715² = 42358378016822450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1322952 + ... + 1323061.

It is an arithmetic number, because the mean of its divisors is an integer number (23814126).

Almost surely, 2^145530715 is an apocalyptic number.

145530715 is a deficient number, since it is larger than the sum of its proper divisors (44982293).

145530715 is a wasteful number, since it uses less digits than its factorization.

145530715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2646029.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 145530715 is about 12063.6111923420. The cubic root of 145530715 is about 525.9989626836.

The spelling of 145530715 in words is "one hundred forty-five million, five hundred thirty thousand, seven hundred fifteen".