401440147 has 2 divisors, whose sum is σ = 401440148. Its totient is φ = 401440146.

The previous prime is 401440103. The next prime is 401440153. The reversal of 401440147 is 741044104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401440147 - 2¹⁹ = 400915859 is a prime.

It is a super-2 number, since 2×401440147² = 322308383246763218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401440157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200720073 + 200720074.

It is an arithmetic number, because the mean of its divisors is an integer number (200720074).

Almost surely, 2^401440147 is an apocalyptic number.

401440147 is a deficient number, since it is larger than the sum of its proper divisors (1).

401440147 is an equidigital number, since it uses as much as digits as its factorization.

401440147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 401440147 is about 20035.9713265916. The cubic root of 401440147 is about 737.6894984464.

The spelling of 401440147 in words is "four hundred one million, four hundred forty thousand, one hundred forty-seven".