193500945 has 48 divisors (see below), whose sum is σ = 367308864. Its totient is φ = 93456000.

The previous prime is 193500911. The next prime is 193500947. The reversal of 193500945 is 549005391.

It is a de Polignac number, because none of the positive numbers 2^k-193500945 is a prime.

It is not an unprimeable number, because it can be changed into a prime (193500947) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 163255 + ... + 164435.

It is an arithmetic number, because the mean of its divisors is an integer number (7652268).

Almost surely, 2^193500945 is an apocalyptic number.

193500945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

193500945 is a deficient number, since it is larger than the sum of its proper divisors (173807919).

193500945 is a wasteful number, since it uses less digits than its factorization.

193500945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534 (or 1531 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 193500945 is about 13910.4617105256. The cubic root of 193500945 is about 578.3992175428.

The spelling of 193500945 in words is "one hundred ninety-three million, five hundred thousand, nine hundred forty-five".