190919461 has 4 divisors (see below), whose sum is σ = 192773152. Its totient is φ = 189065772.

The previous prime is 190919459. The next prime is 190919473. The reversal of 190919461 is 164919091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 190919461 - 2¹ = 190919459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190919761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926691 + ... + 926896.

It is an arithmetic number, because the mean of its divisors is an integer number (48193288).

Almost surely, 2^190919461 is an apocalyptic number.

It is an amenable number.

190919461 is a deficient number, since it is larger than the sum of its proper divisors (1853691).

190919461 is a wasteful number, since it uses less digits than its factorization.

190919461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853690.

The product of its (nonzero) digits is 17496, while the sum is 40.

The square root of 190919461 is about 13817.3608550982. The cubic root of 190919461 is about 575.8155645434.

The spelling of 190919461 in words is "one hundred ninety million, nine hundred nineteen thousand, four hundred sixty-one".