190020054 has 16 divisors (see below), whose sum is σ = 434331648. Its totient is φ = 54291432.

The previous prime is 190020037. The next prime is 190020071. The reversal of 190020054 is 450020091.

It is an interprime number because it is at equal distance from previous prime (190020037) and next prime (190020071).

It is a super-2 number, since 2×190020054² = 72215241844325832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 190020054.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2262102 + ... + 2262185.

It is an arithmetic number, because the mean of its divisors is an integer number (27145728).

Almost surely, 2^190020054 is an apocalyptic number.

190020054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

190020054 is an abundant number, since it is smaller than the sum of its proper divisors (244311594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190020054 is a wasteful number, since it uses less digits than its factorization.

190020054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4524299.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 190020054 is about 13784.7761679325. The cubic root of 190020054 is about 574.9099332149.

The spelling of 190020054 in words is "one hundred ninety million, twenty thousand, fifty-four".