145553313 has 32 divisors (see below), whose sum is σ = 204595200. Its totient is φ = 91967616.

The previous prime is 145553299. The next prime is 145553327. The reversal of 145553313 is 313355541.

It is an interprime number because it is at equal distance from previous prime (145553299) and next prime (145553327).

It is not a de Polignac number, because 145553313 - 2⁶ = 145553249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145553363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 813058 + ... + 813236.

It is an arithmetic number, because the mean of its divisors is an integer number (6393600).

Almost surely, 2^145553313 is an apocalyptic number.

It is an amenable number.

145553313 is a deficient number, since it is larger than the sum of its proper divisors (59041887).

145553313 is a wasteful number, since it uses less digits than its factorization.

145553313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381.

The product of its digits is 13500, while the sum is 30.

The square root of 145553313 is about 12064.5477743677. The cubic root of 145553313 is about 526.0261869694.

The spelling of 145553313 in words is "one hundred forty-five million, five hundred fifty-three thousand, three hundred thirteen".