145353399 has 16 divisors (see below), whose sum is σ = 203136000. Its totient is φ = 92274336.

The previous prime is 145353371. The next prime is 145353409. The reversal of 145353399 is 993353541.

It is not a de Polignac number, because 145353399 - 2⁵ = 145353367 is a prime.

It is a super-2 number, since 2×145353399² = 42255221201706402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145353399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145353319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11202 + ... + 20400.

It is an arithmetic number, because the mean of its divisors is an integer number (12696000).

Almost surely, 2^145353399 is an apocalyptic number.

145353399 is a deficient number, since it is larger than the sum of its proper divisors (57782601).

145353399 is a wasteful number, since it uses less digits than its factorization.

145353399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9454.

The product of its digits is 218700, while the sum is 42.

The square root of 145353399 is about 12056.2597433864. The cubic root of 145353399 is about 525.7852484921.

The spelling of 145353399 in words is "one hundred forty-five million, three hundred fifty-three thousand, three hundred ninety-nine".