149243953399 has 2 divisors, whose sum is σ = 149243953400. Its totient is φ = 149243953398.

The previous prime is 149243953349. The next prime is 149243953429. The reversal of 149243953399 is 993359342941.

149243953399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149243953399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149243953319) 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, 74621976699 + 74621976700.

It is an arithmetic number, because the mean of its divisors is an integer number (74621976700).

Almost surely, 2^149243953399 is an apocalyptic number.

149243953399 is a deficient number, since it is larger than the sum of its proper divisors (1).

149243953399 is an equidigital number, since it uses as much as digits as its factorization.

149243953399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28343520, while the sum is 61.

The spelling of 149243953399 in words is "one hundred forty-nine billion, two hundred forty-three million, nine hundred fifty-three thousand, three hundred ninety-nine".