145265523 has 8 divisors (see below), whose sum is σ = 208586448. Its totient is φ = 89394144.

The previous prime is 145265513. The next prime is 145265531. The reversal of 145265523 is 325562541.

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

It is not a de Polignac number, because 145265523 - 2¹⁰ = 145264499 is a prime.

It is a super-2 number, since 2×145265523² = 42204144344927058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145265513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1862340 + ... + 1862417.

It is an arithmetic number, because the mean of its divisors is an integer number (26073306).

Almost surely, 2^145265523 is an apocalyptic number.

145265523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

145265523 is a deficient number, since it is larger than the sum of its proper divisors (63320925).

145265523 is a wasteful number, since it uses less digits than its factorization.

145265523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3724773.

The product of its digits is 36000, while the sum is 33.

The square root of 145265523 is about 12052.6147785449. The cubic root of 145265523 is about 525.6792695032.

The spelling of 145265523 in words is "one hundred forty-five million, two hundred sixty-five thousand, five hundred twenty-three".