145004015 has 16 divisors (see below), whose sum is σ = 190466976. Its totient is φ = 105321600.

The previous prime is 145004011. The next prime is 145004021. The reversal of 145004015 is 510400541.

It is not a de Polignac number, because 145004015 - 2² = 145004011 is a prime.

It is a super-2 number, since 2×145004015² = 42052328732240450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145004011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14321 + ... + 22250.

It is an arithmetic number, because the mean of its divisors is an integer number (11904186).

Almost surely, 2^145004015 is an apocalyptic number.

145004015 is a deficient number, since it is larger than the sum of its proper divisors (45462961).

145004015 is a wasteful number, since it uses less digits than its factorization.

145004015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36650.

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

The square root of 145004015 is about 12041.7612914391. The cubic root of 145004015 is about 525.3636362058.

Adding to 145004015 its reverse (510400541), we get a palindrome (655404556).

The spelling of 145004015 in words is "one hundred forty-five million, four thousand, fifteen".