190881453 has 16 divisors (see below), whose sum is σ = 292553856. Its totient is φ = 108442560.

The previous prime is 190881437. The next prime is 190881463. The reversal of 190881453 is 354188091.

It is not a de Polignac number, because 190881453 - 2⁴ = 190881437 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190881433) 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, 22638 + ... + 29903.

It is an arithmetic number, because the mean of its divisors is an integer number (18284616).

Almost surely, 2^190881453 is an apocalyptic number.

It is an amenable number.

190881453 is a deficient number, since it is larger than the sum of its proper divisors (101672403).

190881453 is a wasteful number, since it uses less digits than its factorization.

190881453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52724.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 190881453 is about 13815.9854154526. The cubic root of 190881453 is about 575.7773511342. Note that the first 3 decimals are identical.

The spelling of 190881453 in words is "one hundred ninety million, eight hundred eighty-one thousand, four hundred fifty-three".