46421281 has 2 divisors, whose sum is σ = 46421282. Its totient is φ = 46421280.

The previous prime is 46421279. The next prime is 46421293. The reversal of 46421281 is 18212464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40704400 + 5716881 = 6380^2 + 2391^2 .

It is a cyclic number.

It is not a de Polignac number, because 46421281 - 2¹ = 46421279 is a prime.

It is a super-2 number, since 2×46421281² = 4309870659361922, which contains 22 as substring.

Together with 46421279, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (46421231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23210640 + 23210641.

It is an arithmetic number, because the mean of its divisors is an integer number (23210641).

Almost surely, 2^46421281 is an apocalyptic number.

It is an amenable number.

46421281 is a deficient number, since it is larger than the sum of its proper divisors (1).

46421281 is an equidigital number, since it uses as much as digits as its factorization.

46421281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3072, while the sum is 28.

The square root of 46421281 is about 6813.3164464892. The cubic root of 46421281 is about 359.3952836541.

The spelling of 46421281 in words is "forty-six million, four hundred twenty-one thousand, two hundred eighty-one".