1400081 has 2 divisors, whose sum is σ = 1400082. Its totient is φ = 1400080.

The previous prime is 1400051. The next prime is 1400093. The reversal of 1400081 is 1800041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 774400 + 625681 = 880^2 + 791^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400081 - 2⁶ = 1400017 is a prime.

It is a super-2 number, since 2×1400081² = 3920453613122, which contains 22 as substring.

It is a Chen prime.

It is equal to p₁₀₇₁₃₂ and since 1400081 and 107132 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700040 + 700041.

It is an arithmetic number, because the mean of its divisors is an integer number (700041).

2^1400081 is an apocalyptic number.

It is an amenable number.

1400081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400081 is an equidigital number, since it uses as much as digits as its factorization.

1400081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1400081 is about 1183.2501848722. The cubic root of 1400081 is about 111.8710516381.

The spelling of 1400081 in words is "one million, four hundred thousand, eighty-one".