1400012743 has 2 divisors, whose sum is σ = 1400012744. Its totient is φ = 1400012742.

The previous prime is 1400012723. The next prime is 1400012749. The reversal of 1400012743 is 3472100041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1400012743 - 2²¹ = 1397915591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400012749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700006371 + 700006372.

It is an arithmetic number, because the mean of its divisors is an integer number (700006372).

Almost surely, 2^1400012743 is an apocalyptic number.

1400012743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400012743 is an equidigital number, since it uses as much as digits as its factorization.

1400012743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1400012743 is about 37416.7441528522. The cubic root of 1400012743 is about 1118.6923362266.

Adding to 1400012743 its reverse (3472100041), we get a palindrome (4872112784).

The spelling of 1400012743 in words is "one billion, four hundred million, twelve thousand, seven hundred forty-three".