145137175 has 24 divisors (see below), whose sum is σ = 185256000. Its totient is φ = 112740480.

The previous prime is 145137173. The next prime is 145137221. The reversal of 145137175 is 571731541.

It is a happy number.

145137175 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 145137175 - 2¹ = 145137173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145137175.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145137173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174661 + ... + 175489.

It is an arithmetic number, because the mean of its divisors is an integer number (7719000).

Almost surely, 2^145137175 is an apocalyptic number.

145137175 is a deficient number, since it is larger than the sum of its proper divisors (40118825).

145137175 is a wasteful number, since it uses less digits than its factorization.

145137175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035 (or 1030 counting only the distinct ones).

The product of its digits is 14700, while the sum is 34.

The square root of 145137175 is about 12047.2891141534. The cubic root of 145137175 is about 525.5244042100.

The spelling of 145137175 in words is "one hundred forty-five million, one hundred thirty-seven thousand, one hundred seventy-five".