145333893 has 8 divisors (see below), whose sum is σ = 193940128. Its totient is φ = 96808464.

The previous prime is 145333871. The next prime is 145333919. The reversal of 145333893 is 398333541.

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

It is not a de Polignac number, because 145333893 - 2⁵ = 145333861 is a prime.

It is a super-2 number, since 2×145333893² = 42243880909070898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145333093) 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, 15871 + ... + 23292.

It is an arithmetic number, because the mean of its divisors is an integer number (24242516).

Almost surely, 2^145333893 is an apocalyptic number.

It is an amenable number.

145333893 is a deficient number, since it is larger than the sum of its proper divisors (48606235).

145333893 is a wasteful number, since it uses less digits than its factorization.

145333893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40403.

The product of its digits is 116640, while the sum is 39.

The square root of 145333893 is about 12055.4507588891. The cubic root of 145333893 is about 525.7617278269.

The spelling of 145333893 in words is "one hundred forty-five million, three hundred thirty-three thousand, eight hundred ninety-three".