401204533 has 2 divisors, whose sum is σ = 401204534. Its totient is φ = 401204532.

The previous prime is 401204459. The next prime is 401204563. The reversal of 401204533 is 335402104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232776049 + 168428484 = 15257^2 + 12978^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401204533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401204563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200602266 + 200602267.

It is an arithmetic number, because the mean of its divisors is an integer number (200602267).

Almost surely, 2^401204533 is an apocalyptic number.

It is an amenable number.

401204533 is a deficient number, since it is larger than the sum of its proper divisors (1).

401204533 is an equidigital number, since it uses as much as digits as its factorization.

401204533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 401204533 is about 20030.0906887612. The cubic root of 401204533 is about 737.5451481697.

Adding to 401204533 its reverse (335402104), we get a palindrome (736606637).

The spelling of 401204533 in words is "four hundred one million, two hundred four thousand, five hundred thirty-three".