145303613 has 8 divisors (see below), whose sum is σ = 178835328. Its totient is φ = 114965424.

The previous prime is 145303567. The next prime is 145303619. The reversal of 145303613 is 316303541.

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

It is not a de Polignac number, because 145303613 - 2²⁰ = 144255037 is a prime.

It is a super-2 number, since 2×145303613² = 42226279901707538, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145303619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798281 + ... + 798462.

It is an arithmetic number, because the mean of its divisors is an integer number (22354416).

Almost surely, 2^145303613 is an apocalyptic number.

145303613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

145303613 is a deficient number, since it is larger than the sum of its proper divisors (33531715).

145303613 is a wasteful number, since it uses less digits than its factorization.

145303613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596763.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 145303613 is about 12054.1948300166. The cubic root of 145303613 is about 525.7252115206.

The spelling of 145303613 in words is "one hundred forty-five million, three hundred three thousand, six hundred thirteen".