190454 has 12 divisors (see below), whose sum is σ = 314412. Its totient is φ = 86460.

The previous prime is 190409. The next prime is 190471. The reversal of 190454 is 454091.

It is a happy number.

It is a super-2 number, since 2×190454² = 72545452232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 152 + ... + 635.

It is an arithmetic number, because the mean of its divisors is an integer number (26201).

2¹⁹⁰⁴⁵⁴ is an apocalyptic number.

190454 is a deficient number, since it is larger than the sum of its proper divisors (123958).

190454 is a wasteful number, since it uses less digits than its factorization.

190454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 190454 is about 436.4103573473. The cubic root of 190454 is about 57.5347238278.

The spelling of 190454 in words is "one hundred ninety thousand, four hundred fifty-four".