190551 has 8 divisors (see below), whose sum is σ = 267520. Its totient is φ = 120312.

The previous prime is 190543. The next prime is 190573. The reversal of 190551 is 155091.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 190551 - 2³ = 190543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1615 + ... + 1728.

It is an arithmetic number, because the mean of its divisors is an integer number (33440).

2¹⁹⁰⁵⁵¹ is an apocalyptic number.

190551 is a deficient number, since it is larger than the sum of its proper divisors (76969).

190551 is a wasteful number, since it uses less digits than its factorization.

190551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365.

The product of its (nonzero) digits is 225, while the sum is 21.

The square root of 190551 is about 436.5214771349. The cubic root of 190551 is about 57.5444898273.

It can be divided in two parts, 190 and 551, that added together give a triangular number (741 = T₃₈).

The spelling of 190551 in words is "one hundred ninety thousand, five hundred fifty-one".