145227715 has 8 divisors (see below), whose sum is σ = 179895168. Its totient is φ = 112434240.

The previous prime is 145227689. The next prime is 145227743. The reversal of 145227715 is 517722541.

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

It is not a de Polignac number, because 145227715 - 2¹¹ = 145225667 is a prime.

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, 468322 + ... + 468631.

It is an arithmetic number, because the mean of its divisors is an integer number (22486896).

Almost surely, 2^145227715 is an apocalyptic number.

145227715 is a deficient number, since it is larger than the sum of its proper divisors (34667453).

145227715 is an equidigital number, since it uses as much as digits as its factorization.

145227715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936989.

The product of its digits is 19600, while the sum is 34.

The square root of 145227715 is about 12051.0462201421. The cubic root of 145227715 is about 525.6336596757.

The spelling of 145227715 in words is "one hundred forty-five million, two hundred twenty-seven thousand, seven hundred fifteen".