1234140071 has 2 divisors, whose sum is σ = 1234140072. Its totient is φ = 1234140070.

The previous prime is 1234139987. The next prime is 1234140097. The reversal of 1234140071 is 1700414321.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1700414321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1234140071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1234142071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617070035 + 617070036.

It is an arithmetic number, because the mean of its divisors is an integer number (617070036).

Almost surely, 2^1234140071 is an apocalyptic number.

1234140071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234140071 is an equidigital number, since it uses as much as digits as its factorization.

1234140071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1234140071 is about 35130.3297878059. The cubic root of 1234140071 is about 1072.6420489129.

Adding to 1234140071 its reverse (1700414321), we get a palindrome (2934554392).

The spelling of 1234140071 in words is "one billion, two hundred thirty-four million, one hundred forty thousand, seventy-one".