193157028 has 48 divisors (see below), whose sum is σ = 511445760. Its totient is φ = 63014112.

The previous prime is 193156993. The next prime is 193157053. The reversal of 193157028 is 820751391.

193157028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 193156983 and 193157001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13951 + ... + 24102.

It is an arithmetic number, because the mean of its divisors is an integer number (10655120).

Almost surely, 2^193157028 is an apocalyptic number.

193157028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

193157028 is an abundant number, since it is smaller than the sum of its proper divisors (318288732).

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

193157028 is a wasteful number, since it uses less digits than its factorization.

193157028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38113 (or 38105 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 193157028 is about 13898.0944017516. The cubic root of 193157028 is about 578.0563436093.

The spelling of 193157028 in words is "one hundred ninety-three million, one hundred fifty-seven thousand, twenty-eight".