1400881541 has 2 divisors, whose sum is σ = 1400881542. Its totient is φ = 1400881540.

The previous prime is 1400881529. The next prime is 1400881589. The reversal of 1400881541 is 1451880041.

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., 783160225 + 617721316 = 27985^2 + 24854^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400881541 - 2¹⁴ = 1400865157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1400881498 and 1400881507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400881591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700440770 + 700440771.

It is an arithmetic number, because the mean of its divisors is an integer number (700440771).

Almost surely, 2^1400881541 is an apocalyptic number.

It is an amenable number.

1400881541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400881541 is an equidigital number, since it uses as much as digits as its factorization.

1400881541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 1400881541 is about 37428.3521010477. The cubic root of 1400881541 is about 1118.9236952369.

The spelling of 1400881541 in words is "one billion, four hundred million, eight hundred eighty-one thousand, five hundred forty-one".