145092505 has 16 divisors (see below), whose sum is σ = 178148160. Its totient is φ = 113407168.

The previous prime is 145092499. The next prime is 145092523. The reversal of 145092505 is 505290541.

It is a cyclic number.

It is not a de Polignac number, because 145092505 - 2⁷ = 145092377 is a prime.

It is an alternating number because its digits alternate between odd and even.

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, 49614 + ... + 52456.

It is an arithmetic number, because the mean of its divisors is an integer number (11134260).

Almost surely, 2^145092505 is an apocalyptic number.

It is an amenable number.

145092505 is a deficient number, since it is larger than the sum of its proper divisors (33055655).

145092505 is a wasteful number, since it uses less digits than its factorization.

145092505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 145092505 is about 12045.4350274284. The cubic root of 145092505 is about 525.4704837633.

The spelling of 145092505 in words is "one hundred forty-five million, ninety-two thousand, five hundred five".