47155151 has 4 divisors (see below), whose sum is σ = 47613072. Its totient is φ = 46697232.

The previous prime is 47155139. The next prime is 47155159. The reversal of 47155151 is 15155174.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47155151 - 2²² = 42960847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47155159) 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 3 ways as a sum of consecutive naturals, for example, 228806 + ... + 229011.

It is an arithmetic number, because the mean of its divisors is an integer number (11903268).

Almost surely, 2^47155151 is an apocalyptic number.

47155151 is a deficient number, since it is larger than the sum of its proper divisors (457921).

47155151 is a wasteful number, since it uses less digits than its factorization.

47155151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457920.

The product of its digits is 3500, while the sum is 29.

The square root of 47155151 is about 6866.9608270326. The cubic root of 47155151 is about 361.2792732591.

It can be divided in two parts, 4715 and 5151, that multiplied together give a triangular number (24286965 = T₆₉₆₉).

The spelling of 47155151 in words is "forty-seven million, one hundred fifty-five thousand, one hundred fifty-one".