46437581 has 2 divisors, whose sum is σ = 46437582. Its totient is φ = 46437580.

The previous prime is 46437569. The next prime is 46437583. The reversal of 46437581 is 18573464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40513225 + 5924356 = 6365^2 + 2434^2 .

It is a cyclic number.

It is not a de Polignac number, because 46437581 - 2¹⁴ = 46421197 is a prime.

It is a super-2 number, since 2×46437581² = 4312897858263122, which contains 22 as substring.

Together with 46437583, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46437583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23218790 + 23218791.

It is an arithmetic number, because the mean of its divisors is an integer number (23218791).

Almost surely, 2^46437581 is an apocalyptic number.

It is an amenable number.

46437581 is a deficient number, since it is larger than the sum of its proper divisors (1).

46437581 is an equidigital number, since it uses as much as digits as its factorization.

46437581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 38.

The square root of 46437581 is about 6814.5125284205. The cubic root of 46437581 is about 359.4373438003.

The spelling of 46437581 in words is "forty-six million, four hundred thirty-seven thousand, five hundred eighty-one".