401111453 has 2 divisors, whose sum is σ = 401111454. Its totient is φ = 401111452.

The previous prime is 401111423. The next prime is 401111507. The reversal of 401111453 is 354111104.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 255136729 + 145974724 = 15973^2 + 12082^2 .

It is a cyclic number.

It is not a de Polignac number, because 401111453 - 2⁸ = 401111197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401111423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200555726 + 200555727.

It is an arithmetic number, because the mean of its divisors is an integer number (200555727).

Almost surely, 2^401111453 is an apocalyptic number.

It is an amenable number.

401111453 is a deficient number, since it is larger than the sum of its proper divisors (1).

401111453 is an equidigital number, since it uses as much as digits as its factorization.

401111453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 401111453 is about 20027.7670497737. The cubic root of 401111453 is about 737.4881065974.

Adding to 401111453 its reverse (354111104), we get a palindrome (755222557).

The spelling of 401111453 in words is "four hundred one million, one hundred eleven thousand, four hundred fifty-three".