193145456 has 60 divisors (see below), whose sum is σ = 441933768. Its totient is φ = 81518976.

The previous prime is 193145453. The next prime is 193145471. The reversal of 193145456 is 654541391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193145453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50690 + ... + 54366.

Almost surely, 2^193145456 is an apocalyptic number.

193145456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 193145456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220966884).

193145456 is an abundant number, since it is smaller than the sum of its proper divisors (248788312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

193145456 is a wasteful number, since it uses less digits than its factorization.

193145456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3766 (or 3753 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The square root of 193145456 is about 13897.6780794491. The cubic root of 193145456 is about 578.0447996310.

The spelling of 193145456 in words is "one hundred ninety-three million, one hundred forty-five thousand, four hundred fifty-six".