1401147 has 12 divisors (see below), whose sum is σ = 2208024. Its totient is φ = 849120.

The previous prime is 1401139. The next prime is 1401151. The reversal of 1401147 is 7411041.

It is not a de Polignac number, because 1401147 - 2³ = 1401139 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1401167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6978 + ... + 7175.

It is an arithmetic number, because the mean of its divisors is an integer number (184002).

2^1401147 is an apocalyptic number.

1401147 is a deficient number, since it is larger than the sum of its proper divisors (806877).

1401147 is a wasteful number, since it uses less digits than its factorization.

1401147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14170 (or 14167 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1401147 is about 1183.7005533495. The cubic root of 1401147 is about 111.8994367309.

Adding to 1401147 its reverse (7411041), we get a palindrome (8812188).

The spelling of 1401147 in words is "one million, four hundred one thousand, one hundred forty-seven".