1401142081 has 2 divisors, whose sum is σ = 1401142082. Its totient is φ = 1401142080.

The previous prime is 1401142027. The next prime is 1401142087. The reversal of 1401142081 is 1802411041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1221153025 + 179989056 = 34945^2 + 13416^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401142081 - 2⁷ = 1401141953 is a prime.

It is a super-2 number, since 2×1401142081² = 3926398262298021122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1401142087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700571040 + 700571041.

It is an arithmetic number, because the mean of its divisors is an integer number (700571041).

Almost surely, 2^1401142081 is an apocalyptic number.

It is an amenable number.

1401142081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401142081 is an equidigital number, since it uses as much as digits as its factorization.

1401142081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 1401142081 is about 37431.8324558123. The cubic root of 1401142081 is about 1118.9930578252.

The spelling of 1401142081 in words is "one billion, four hundred one million, one hundred forty-two thousand, eighty-one".