401133487 has 2 divisors, whose sum is σ = 401133488. Its totient is φ = 401133486.

The previous prime is 401133379. The next prime is 401133493. The reversal of 401133487 is 784331104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401133487 - 2²³ = 392744879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401133787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200566743 + 200566744.

It is an arithmetic number, because the mean of its divisors is an integer number (200566744).

Almost surely, 2^401133487 is an apocalyptic number.

401133487 is a deficient number, since it is larger than the sum of its proper divisors (1).

401133487 is an equidigital number, since it uses as much as digits as its factorization.

401133487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 401133487 is about 20028.3171285058. The cubic root of 401133487 is about 737.5016103383.

The spelling of 401133487 in words is "four hundred one million, one hundred thirty-three thousand, four hundred eighty-seven".