1400111189 has 2 divisors, whose sum is σ = 1400111190. Its totient is φ = 1400111188.

The previous prime is 1400111183. The next prime is 1400111227. The reversal of 1400111189 is 9811110041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1381980625 + 18130564 = 37175^2 + 4258^2 .

It is an emirp because it is prime and its reverse (9811110041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1400111189 - 2²⁸ = 1131675733 is a prime.

It is a super-2 number, since 2×1400111189² = 3920622683125987442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400111183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700055594 + 700055595.

It is an arithmetic number, because the mean of its divisors is an integer number (700055595).

Almost surely, 2^1400111189 is an apocalyptic number.

It is an amenable number.

1400111189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400111189 is an equidigital number, since it uses as much as digits as its factorization.

1400111189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 26.

The square root of 1400111189 is about 37418.0596637506. The cubic root of 1400111189 is about 1118.7185569890.

The spelling of 1400111189 in words is "one billion, four hundred million, one hundred eleven thousand, one hundred eighty-nine".