46729181 has 2 divisors, whose sum is σ = 46729182. Its totient is φ = 46729180.

The previous prime is 46729157. The next prime is 46729213. The reversal of 46729181 is 18192764.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28793956 + 17935225 = 5366^2 + 4235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46729181 is a prime.

It is a super-2 number, since 2×46729181² = 4367232713861522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46719181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23364590 + 23364591.

It is an arithmetic number, because the mean of its divisors is an integer number (23364591).

Almost surely, 2^46729181 is an apocalyptic number.

It is an amenable number.

46729181 is a deficient number, since it is larger than the sum of its proper divisors (1).

46729181 is an equidigital number, since it uses as much as digits as its factorization.

46729181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 38.

The square root of 46729181 is about 6835.8745599960. The cubic root of 46729181 is about 360.1881244117.

The spelling of 46729181 in words is "forty-six million, seven hundred twenty-nine thousand, one hundred eighty-one".