149803237 has 2 divisors, whose sum is σ = 149803238. Its totient is φ = 149803236.

The previous prime is 149803207. The next prime is 149803249. The reversal of 149803237 is 732308941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124411716 + 25391521 = 11154^2 + 5039^2 .

It is a cyclic number.

It is not a de Polignac number, because 149803237 - 2¹¹ = 149801189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149803196 and 149803205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149803207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74901618 + 74901619.

It is an arithmetic number, because the mean of its divisors is an integer number (74901619).

Almost surely, 2^149803237 is an apocalyptic number.

It is an amenable number.

149803237 is a deficient number, since it is larger than the sum of its proper divisors (1).

149803237 is an equidigital number, since it uses as much as digits as its factorization.

149803237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 149803237 is about 12239.4132620808. The cubic root of 149803237 is about 531.0968586131.

The spelling of 149803237 in words is "one hundred forty-nine million, eight hundred three thousand, two hundred thirty-seven".