199065454 has 16 divisors (see below), whose sum is σ = 353023200. Its totient is φ = 82371744.

The previous prime is 199065443. The next prime is 199065467. The reversal of 199065454 is 454560991.

It is a super-2 number, since 2×199065454² = 79254109952452232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 199065454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244749 + ... + 245560.

It is an arithmetic number, because the mean of its divisors is an integer number (22063950).

Almost surely, 2^199065454 is an apocalyptic number.

199065454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

199065454 is a deficient number, since it is larger than the sum of its proper divisors (153957746).

199065454 is a wasteful number, since it uses less digits than its factorization.

199065454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490347.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 199065454 is about 14109.0557444501. The cubic root of 199065454 is about 583.8912488279.

The spelling of 199065454 in words is "one hundred ninety-nine million, sixty-five thousand, four hundred fifty-four".