401135047 has 4 divisors (see below), whose sum is σ = 414967320. Its totient is φ = 387302776.

The previous prime is 401135039. The next prime is 401135051. The reversal of 401135047 is 740531104.

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

It is a cyclic number.

It is not a de Polignac number, because 401135047 - 2³ = 401135039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401135027) 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, 6916093 + ... + 6916150.

It is an arithmetic number, because the mean of its divisors is an integer number (103741830).

Almost surely, 2^401135047 is an apocalyptic number.

401135047 is a deficient number, since it is larger than the sum of its proper divisors (13832273).

401135047 is a wasteful number, since it uses less digits than its factorization.

401135047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13832272.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 401135047 is about 20028.3560733276. The cubic root of 401135047 is about 737.5025663800.

The spelling of 401135047 in words is "four hundred one million, one hundred thirty-five thousand, forty-seven".