46144781 has 2 divisors, whose sum is σ = 46144782. Its totient is φ = 46144780.

The previous prime is 46144759. The next prime is 46144789. The reversal of 46144781 is 18744164.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45778756 + 366025 = 6766^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 46144781 - 2¹⁸ = 45882637 is a prime.

It is a super-2 number, since 2×46144781² = 4258681627075922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46144789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23072390 + 23072391.

It is an arithmetic number, because the mean of its divisors is an integer number (23072391).

Almost surely, 2^46144781 is an apocalyptic number.

It is an amenable number.

46144781 is a deficient number, since it is larger than the sum of its proper divisors (1).

46144781 is an equidigital number, since it uses as much as digits as its factorization.

46144781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 35.

The square root of 46144781 is about 6792.9949948458. The cubic root of 46144781 is about 358.6803044608.

The spelling of 46144781 in words is "forty-six million, one hundred forty-four thousand, seven hundred eighty-one".