401521033 has 2 divisors, whose sum is σ = 401521034. Its totient is φ = 401521032.

The previous prime is 401521027. The next prime is 401521039. The reversal of 401521033 is 330125104.

It is a balanced prime because it is at equal distance from previous prime (401521027) and next prime (401521039).

It can be written as a sum of positive squares in only one way, i.e., 390971529 + 10549504 = 19773^2 + 3248^2 .

It is a cyclic number.

It is not a de Polignac number, because 401521033 - 2²⁵ = 367966601 is a prime.

It is a super-2 number, since 2×401521033² = 322438279882774178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401521033.

It is not a weakly prime, because it can be changed into another prime (401521039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200760516 + 200760517.

It is an arithmetic number, because the mean of its divisors is an integer number (200760517).

Almost surely, 2^401521033 is an apocalyptic number.

It is an amenable number.

401521033 is a deficient number, since it is larger than the sum of its proper divisors (1).

401521033 is an equidigital number, since it uses as much as digits as its factorization.

401521033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 401521033 is about 20037.9897444829. The cubic root of 401521033 is about 737.7390406975.

Adding to 401521033 its reverse (330125104), we get a palindrome (731646137).

The spelling of 401521033 in words is "four hundred one million, five hundred twenty-one thousand, thirty-three".