47136331 has 8 divisors (see below), whose sum is σ = 51510528. Its totient is φ = 42777000.

The previous prime is 47136329. The next prime is 47136343. The reversal of 47136331 is 13363174.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 47136331 - 2¹ = 47136329 is a prime.

It is a super-2 number, since 2×47136331² = 4443667400283122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47136331.

It is not an unprimeable number, because it can be changed into a prime (47136301) 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, 3546 + ... + 10336.

It is an arithmetic number, because the mean of its divisors is an integer number (6438816).

Almost surely, 2^47136331 is an apocalyptic number.

47136331 is a deficient number, since it is larger than the sum of its proper divisors (4374197).

47136331 is a wasteful number, since it uses less digits than its factorization.

47136331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7433.

The product of its digits is 4536, while the sum is 28.

The square root of 47136331 is about 6865.5903606318. The cubic root of 47136331 is about 361.2312037091.

The spelling of 47136331 in words is "forty-seven million, one hundred thirty-six thousand, three hundred thirty-one".