149995249 has 2 divisors, whose sum is σ = 149995250. Its totient is φ = 149995248.

The previous prime is 149995231. The next prime is 149995273. The reversal of 149995249 is 942599941.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143400625 + 6594624 = 11975^2 + 2568^2 .

It is a cyclic number.

It is not a de Polignac number, because 149995249 - 2¹⁷ = 149864177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149995196 and 149995205.

It is not a weakly prime, because it can be changed into another prime (149995289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74997624 + 74997625.

It is an arithmetic number, because the mean of its divisors is an integer number (74997625).

Almost surely, 2^149995249 is an apocalyptic number.

It is an amenable number.

149995249 is a deficient number, since it is larger than the sum of its proper divisors (1).

149995249 is an equidigital number, since it uses as much as digits as its factorization.

149995249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1049760, while the sum is 52.

The square root of 149995249 is about 12247.2547536172. The cubic root of 149995249 is about 531.3236748756.

The spelling of 149995249 in words is "one hundred forty-nine million, nine hundred ninety-five thousand, two hundred forty-nine".