149091743 has 2 divisors, whose sum is σ = 149091744. Its totient is φ = 149091742.

The previous prime is 149091739. The next prime is 149091763. The reversal of 149091743 is 347190941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149091743 - 2² = 149091739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149091697 and 149091706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149091713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74545871 + 74545872.

It is an arithmetic number, because the mean of its divisors is an integer number (74545872).

Almost surely, 2^149091743 is an apocalyptic number.

149091743 is a deficient number, since it is larger than the sum of its proper divisors (1).

149091743 is an equidigital number, since it uses as much as digits as its factorization.

149091743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 149091743 is about 12210.3129771517. The cubic root of 149091743 is about 530.2547049162.

The spelling of 149091743 in words is "one hundred forty-nine million, ninety-one thousand, seven hundred forty-three".