401305147 has 2 divisors, whose sum is σ = 401305148. Its totient is φ = 401305146.

The previous prime is 401305133. The next prime is 401305193. The reversal of 401305147 is 741503104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401305147 - 2⁷ = 401305019 is a prime.

It is a super-2 number, since 2×401305147² = 322091642017383218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401305547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200652573 + 200652574.

It is an arithmetic number, because the mean of its divisors is an integer number (200652574).

Almost surely, 2^401305147 is an apocalyptic number.

401305147 is a deficient number, since it is larger than the sum of its proper divisors (1).

401305147 is an equidigital number, since it uses as much as digits as its factorization.

401305147 is an evil number, because the sum of its binary digits is even.

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

The square root of 401305147 is about 20032.6021025727. The cubic root of 401305147 is about 737.6067968294.

The spelling of 401305147 in words is "four hundred one million, three hundred five thousand, one hundred forty-seven".