1400186069 has 2 divisors, whose sum is σ = 1400186070. Its totient is φ = 1400186068.

The previous prime is 1400186027. The next prime is 1400186077. The reversal of 1400186069 is 9606810041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1305376900 + 94809169 = 36130^2 + 9737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400186069 is a prime.

It is a super-2 number, since 2×1400186069² = 3921042055643345522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400176069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700093034 + 700093035.

It is an arithmetic number, because the mean of its divisors is an integer number (700093035).

Almost surely, 2^1400186069 is an apocalyptic number.

It is an amenable number.

1400186069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400186069 is an equidigital number, since it uses as much as digits as its factorization.

1400186069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1400186069 is about 37419.0602367296. The cubic root of 1400186069 is about 1118.7385002033.

The spelling of 1400186069 in words is "one billion, four hundred million, one hundred eighty-six thousand, sixty-nine".