145976013 has 20 divisors (see below), whose sum is σ = 223139488. Its totient is φ = 95051880.

The previous prime is 145976011. The next prime is 145976021. The reversal of 145976013 is 310679541.

145976013 is a `hidden beast` number, since 1 + 4 + 597 + 60 + 1 + 3 = 666.

It is not a de Polignac number, because 145976013 - 2¹ = 145976011 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145976011) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17473 + ... + 24438.

Almost surely, 2^145976013 is an apocalyptic number.

It is an amenable number.

145976013 is a deficient number, since it is larger than the sum of its proper divisors (77163475).

145976013 is an equidigital number, since it uses as much as digits as its factorization.

145976013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41966 (or 41957 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 145976013 is about 12082.0533436995. The cubic root of 145976013 is about 526.5349040585.

The spelling of 145976013 in words is "one hundred forty-five million, nine hundred seventy-six thousand, thirteen".