191043070 has 16 divisors (see below), whose sum is σ = 344185488. Its totient is φ = 76348800.

The previous prime is 191043029. The next prime is 191043071. The reversal of 191043070 is 70340191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191043071) by changing a digit.

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, 4057 + ... + 19963.

It is an arithmetic number, because the mean of its divisors is an integer number (21511593).

Almost surely, 2^191043070 is an apocalyptic number.

191043070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

191043070 is a deficient number, since it is larger than the sum of its proper divisors (153142418).

191043070 is a wasteful number, since it uses less digits than its factorization.

191043070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17115.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 191043070 is about 13821.8330911641. The cubic root of 191043070 is about 575.9398065153.

The spelling of 191043070 in words is "one hundred ninety-one million, forty-three thousand, seventy".