191046253 has 16 divisors (see below), whose sum is σ = 198132480. Its totient is φ = 184144896.

The previous prime is 191046239. The next prime is 191046263. The reversal of 191046253 is 352640191.

191046253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-191046253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191046203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 819825 + ... + 820057.

It is an arithmetic number, because the mean of its divisors is an integer number (12383280).

Almost surely, 2^191046253 is an apocalyptic number.

It is an amenable number.

191046253 is a deficient number, since it is larger than the sum of its proper divisors (7086227).

191046253 is a wasteful number, since it uses less digits than its factorization.

With its successor (191046254) it forms an eRAP, since the sums of their prime factors are consecutive (516 and 517).

191046253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 191046253 is about 13821.9482346014. The cubic root of 191046253 is about 575.9430051068.

The spelling of 191046253 in words is "one hundred ninety-one million, forty-six thousand, two hundred fifty-three".