145173333 has 16 divisors (see below), whose sum is σ = 205128000. Its totient is φ = 91163520.

The previous prime is 145173331. The next prime is 145173359. The reversal of 145173333 is 333371541.

145173333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145173333 - 2¹ = 145173331 is a prime.

It is a super-2 number, since 2×145173333² = 42150593228657778, 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 145173333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145173331) 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, 16783 + ... + 23916.

It is an arithmetic number, because the mean of its divisors is an integer number (12820500).

Almost surely, 2^145173333 is an apocalyptic number.

It is an amenable number.

145173333 is a deficient number, since it is larger than the sum of its proper divisors (59954667).

145173333 is a wasteful number, since it uses less digits than its factorization.

145173333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40772.

The product of its digits is 11340, while the sum is 30.

The square root of 145173333 is about 12048.7896902552. The cubic root of 145173333 is about 525.5680418552.

The spelling of 145173333 in words is "one hundred forty-five million, one hundred seventy-three thousand, three hundred thirty-three".