193045851 has 6 divisors (see below), whose sum is σ = 278844020. Its totient is φ = 128697228.

The previous prime is 193045849. The next prime is 193045861. The reversal of 193045851 is 158540391.

193045851 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 193045851 - 2¹ = 193045849 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (193045861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10724761 + ... + 10724778.

Almost surely, 2^193045851 is an apocalyptic number.

193045851 is a deficient number, since it is larger than the sum of its proper divisors (85798169).

193045851 is a wasteful number, since it uses less digits than its factorization.

193045851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21449545 (or 21449542 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 193045851 is about 13894.0941050505. The cubic root of 193045851 is about 577.9454167555.

The spelling of 193045851 in words is "one hundred ninety-three million, forty-five thousand, eight hundred fifty-one".