47361581 has 2 divisors, whose sum is σ = 47361582. Its totient is φ = 47361580.

The previous prime is 47361569. The next prime is 47361593. The reversal of 47361581 is 18516374.

It is a balanced prime because it is at equal distance from previous prime (47361569) and next prime (47361593).

It can be written as a sum of positive squares in only one way, i.e., 44769481 + 2592100 = 6691^2 + 1610^2 .

It is a cyclic number.

It is not a de Polignac number, because 47361581 - 2¹⁰ = 47360557 is a prime.

It is a super-2 number, since 2×47361581² = 4486238709639122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47360581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23680790 + 23680791.

It is an arithmetic number, because the mean of its divisors is an integer number (23680791).

Almost surely, 2^47361581 is an apocalyptic number.

It is an amenable number.

47361581 is a deficient number, since it is larger than the sum of its proper divisors (1).

47361581 is an equidigital number, since it uses as much as digits as its factorization.

47361581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 35.

The square root of 47361581 is about 6881.9750798735. The cubic root of 47361581 is about 361.8056937759.

The spelling of 47361581 in words is "forty-seven million, three hundred sixty-one thousand, five hundred eighty-one".