149597843 has 2 divisors, whose sum is σ = 149597844. Its totient is φ = 149597842.

The previous prime is 149597827. The next prime is 149597857. The reversal of 149597843 is 348795941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149597843 - 2⁴ = 149597827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149597791 and 149597800.

It is not a weakly prime, because it can be changed into another prime (149597873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74798921 + 74798922.

It is an arithmetic number, because the mean of its divisors is an integer number (74798922).

Almost surely, 2^149597843 is an apocalyptic number.

149597843 is a deficient number, since it is larger than the sum of its proper divisors (1).

149597843 is an equidigital number, since it uses as much as digits as its factorization.

149597843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 50.

The square root of 149597843 is about 12231.0197040149. The cubic root of 149597843 is about 530.8540200667.

The spelling of 149597843 in words is "one hundred forty-nine million, five hundred ninety-seven thousand, eight hundred forty-three".