149243953429 has 2 divisors, whose sum is σ = 149243953430. Its totient is φ = 149243953428.

The previous prime is 149243953399. The next prime is 149243953433. The reversal of 149243953429 is 924359342941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113171688100 + 36072265329 = 336410^2 + 189927^2 .

It is an emirp because it is prime and its reverse (924359342941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149243953429 - 2⁷ = 149243953301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149243953429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149243953829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74621976714 + 74621976715.

It is an arithmetic number, because the mean of its divisors is an integer number (74621976715).

Almost surely, 2^149243953429 is an apocalyptic number.

It is an amenable number.

149243953429 is a deficient number, since it is larger than the sum of its proper divisors (1).

149243953429 is an equidigital number, since it uses as much as digits as its factorization.

149243953429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8398080, while the sum is 55.

The spelling of 149243953429 in words is "one hundred forty-nine billion, two hundred forty-three million, nine hundred fifty-three thousand, four hundred twenty-nine".