149686373 has 2 divisors, whose sum is σ = 149686374. Its totient is φ = 149686372.

The previous prime is 149686333. The next prime is 149686379. The reversal of 149686373 is 373686941.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112317604 + 37368769 = 10598^2 + 6113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149686373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149686379) 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, 74843186 + 74843187.

It is an arithmetic number, because the mean of its divisors is an integer number (74843187).

Almost surely, 2^149686373 is an apocalyptic number.

It is an amenable number.

149686373 is a deficient number, since it is larger than the sum of its proper divisors (1).

149686373 is an equidigital number, since it uses as much as digits as its factorization.

149686373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 47.

The square root of 149686373 is about 12234.6382455715. The cubic root of 149686373 is about 530.9587168499.

The spelling of 149686373 in words is "one hundred forty-nine million, six hundred eighty-six thousand, three hundred seventy-three".