145022015 has 16 divisors (see below), whose sum is σ = 185822208. Its totient is φ = 108388896.

The previous prime is 145021997. The next prime is 145022021. The reversal of 145022015 is 510220541.

It is a de Polignac number, because none of the positive numbers 2^k-145022015 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9719 + ... + 19608.

It is an arithmetic number, because the mean of its divisors is an integer number (11613888).

Almost surely, 2^145022015 is an apocalyptic number.

145022015 is a deficient number, since it is larger than the sum of its proper divisors (40800193).

145022015 is a wasteful number, since it uses less digits than its factorization.

145022015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29398.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 145022015 is about 12042.5086672171. The cubic root of 145022015 is about 525.3853738893.

Adding to 145022015 its reverse (510220541), we get a palindrome (655242556).

The spelling of 145022015 in words is "one hundred forty-five million, twenty-two thousand, fifteen".