403081249 has 2 divisors, whose sum is σ = 403081250. Its totient is φ = 403081248.

The previous prime is 403081223. The next prime is 403081277. The reversal of 403081249 is 942180304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201640000 + 201441249 = 14200^2 + 14193^2 .

It is a cyclic number.

It is not a de Polignac number, because 403081249 - 2⁹ = 403080737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 403081249.

It is not a weakly prime, because it can be changed into another prime (403081649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201540624 + 201540625.

It is an arithmetic number, because the mean of its divisors is an integer number (201540625).

Almost surely, 2^403081249 is an apocalyptic number.

It is an amenable number.

403081249 is a deficient number, since it is larger than the sum of its proper divisors (1).

403081249 is an equidigital number, since it uses as much as digits as its factorization.

403081249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 403081249 is about 20076.8834483841. The cubic root of 403081249 is about 738.6933656193.

The spelling of 403081249 in words is "four hundred three million, eighty-one thousand, two hundred forty-nine".