1400440141 has 2 divisors, whose sum is σ = 1400440142. Its totient is φ = 1400440140.

The previous prime is 1400440109. The next prime is 1400440177. The reversal of 1400440141 is 1410440041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1400331241 + 108900 = 37421^2 + 330^2 .

It is an emirp because it is prime and its reverse (1410440041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1400440141 - 2⁵ = 1400440109 is a prime.

It is a super-2 number, since 2×1400440141² = 3922465177048199762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400480141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700220070 + 700220071.

It is an arithmetic number, because the mean of its divisors is an integer number (700220071).

Almost surely, 2^1400440141 is an apocalyptic number.

It is an amenable number.

1400440141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400440141 is an equidigital number, since it uses as much as digits as its factorization.

1400440141 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 19.

The square root of 1400440141 is about 37422.4550370496. The cubic root of 1400440141 is about 1118.8061633384.

Adding to 1400440141 its reverse (1410440041), we get a palindrome (2810880182).

It can be divided in two parts, 14004 and 40141, that added together give a palindrome (54145).

The spelling of 1400440141 in words is "one billion, four hundred million, four hundred forty thousand, one hundred forty-one".