149838743 has 2 divisors, whose sum is σ = 149838744. Its totient is φ = 149838742.

The previous prime is 149838719. The next prime is 149838757. The reversal of 149838743 is 347838941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149838743 - 2⁸ = 149838487 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149838043) 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, 74919371 + 74919372.

It is an arithmetic number, because the mean of its divisors is an integer number (74919372).

Almost surely, 2^149838743 is an apocalyptic number.

149838743 is a deficient number, since it is larger than the sum of its proper divisors (1).

149838743 is an equidigital number, since it uses as much as digits as its factorization.

149838743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 47.

The square root of 149838743 is about 12240.8636541708. The cubic root of 149838743 is about 531.1388150617.

The spelling of 149838743 in words is "one hundred forty-nine million, eight hundred thirty-eight thousand, seven hundred forty-three".