47181099 has 16 divisors (see below), whose sum is σ = 72216320. Its totient is φ = 26840160.

The previous prime is 47181097. The next prime is 47181131. The reversal of 47181099 is 99018174.

It is a happy number.

It is not a de Polignac number, because 47181099 - 2¹ = 47181097 is a prime.

It is a super-2 number, since 2×47181099² = 4452112205695602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47181097) 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 15 ways as a sum of consecutive naturals, for example, 97 + ... + 9714.

It is an arithmetic number, because the mean of its divisors is an integer number (4513520).

Almost surely, 2^47181099 is an apocalyptic number.

47181099 is a deficient number, since it is larger than the sum of its proper divisors (25035221).

47181099 is a wasteful number, since it uses less digits than its factorization.

47181099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10050.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 47181099 is about 6868.8499037321. The cubic root of 47181099 is about 361.3455279907.

The spelling of 47181099 in words is "forty-seven million, one hundred eighty-one thousand, ninety-nine".