145264505 has 16 divisors (see below), whose sum is σ = 177475584. Its totient is φ = 114125760.

The previous prime is 145264501. The next prime is 145264529. The reversal of 145264505 is 505462541.

145264505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145264505 - 2² = 145264501 is a prime.

It is a super-4 number, since 4×145264505⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145264501) 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, 64295 + ... + 66515.

It is an arithmetic number, because the mean of its divisors is an integer number (11092224).

Almost surely, 2^145264505 is an apocalyptic number.

It is an amenable number.

145264505 is a deficient number, since it is larger than the sum of its proper divisors (32211079).

145264505 is a wasteful number, since it uses less digits than its factorization.

145264505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 145264505 is about 12052.5725469710. The cubic root of 145264505 is about 525.6780415386.

The spelling of 145264505 in words is "one hundred forty-five million, two hundred sixty-four thousand, five hundred five".