401126587 has 4 divisors (see below), whose sum is σ = 401860456. Its totient is φ = 400392720.

The previous prime is 401126581. The next prime is 401126597. The reversal of 401126587 is 785621104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401126587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401126581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366114 + ... + 367207.

It is an arithmetic number, because the mean of its divisors is an integer number (100465114).

Almost surely, 2^401126587 is an apocalyptic number.

401126587 is a deficient number, since it is larger than the sum of its proper divisors (733869).

401126587 is an equidigital number, since it uses as much as digits as its factorization.

401126587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733868.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 401126587 is about 20028.1448716550. The cubic root of 401126587 is about 737.4973816626.

The spelling of 401126587 in words is "four hundred one million, one hundred twenty-six thousand, five hundred eighty-seven".