189077955 has 32 divisors (see below), whose sum is σ = 338957568. Its totient is φ = 89193600.

The previous prime is 189077939. The next prime is 189077971. The reversal of 189077955 is 559770981.

It is an interprime number because it is at equal distance from previous prime (189077939) and next prime (189077971).

It is not a de Polignac number, because 189077955 - 2⁴ = 189077939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 189077898 and 189077907.

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 31 ways as a sum of consecutive naturals, for example, 9381 + ... + 21590.

It is an arithmetic number, because the mean of its divisors is an integer number (10592424).

Almost surely, 2^189077955 is an apocalyptic number.

189077955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189077955 is a deficient number, since it is larger than the sum of its proper divisors (149879613).

189077955 is a wasteful number, since it uses less digits than its factorization.

189077955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31027.

The product of its (nonzero) digits is 793800, while the sum is 51.

The square root of 189077955 is about 13750.5619885152. The cubic root of 189077955 is about 573.9582448067.

It can be divided in two parts, 18907 and 7955, that added together give a palindrome (26862).

The spelling of 189077955 in words is "one hundred eighty-nine million, seventy-seven thousand, nine hundred fifty-five".