1403081 has 2 divisors, whose sum is σ = 1403082. Its totient is φ = 1403080.

The previous prime is 1403071. The next prime is 1403113. The reversal of 1403081 is 1803041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1401856 + 1225 = 1184^2 + 35^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1403081 is a prime.

It is a super-2 number, since 2×1403081² = 3937272585122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1403021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701540 + 701541.

It is an arithmetic number, because the mean of its divisors is an integer number (701541).

2^1403081 is an apocalyptic number.

It is an amenable number.

1403081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1403081 is an equidigital number, since it uses as much as digits as its factorization.

1403081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1403081 is about 1184.5172012259. The cubic root of 1403081 is about 111.9508979065.

The spelling of 1403081 in words is "one million, four hundred three thousand, eighty-one".