149193937 has 2 divisors, whose sum is σ = 149193938. Its totient is φ = 149193936.

The previous prime is 149193931. The next prime is 149193973. The reversal of 149193937 is 739391941.

Together with next prime (149193973) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148254976 + 938961 = 12176^2 + 969^2 .

It is a cyclic number.

It is not a de Polignac number, because 149193937 - 2⁷ = 149193809 is a prime.

It is not a weakly prime, because it can be changed into another prime (149193931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74596968 + 74596969.

It is an arithmetic number, because the mean of its divisors is an integer number (74596969).

Almost surely, 2^149193937 is an apocalyptic number.

It is an amenable number.

149193937 is a deficient number, since it is larger than the sum of its proper divisors (1).

149193937 is an equidigital number, since it uses as much as digits as its factorization.

149193937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 183708, while the sum is 46.

The square root of 149193937 is about 12214.4970015142. The cubic root of 149193937 is about 530.3758304992.

The spelling of 149193937 in words is "one hundred forty-nine million, one hundred ninety-three thousand, nine hundred thirty-seven".