149851249 has 2 divisors, whose sum is σ = 149851250. Its totient is φ = 149851248.

The previous prime is 149851211. The next prime is 149851337. The reversal of 149851249 is 942158941.

149851249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100641024 + 49210225 = 10032^2 + 7015^2 .

It is an emirp because it is prime and its reverse (942158941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149851249 is a prime.

It is not a weakly prime, because it can be changed into another prime (149851349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74925624 + 74925625.

It is an arithmetic number, because the mean of its divisors is an integer number (74925625).

Almost surely, 2^149851249 is an apocalyptic number.

It is an amenable number.

149851249 is a deficient number, since it is larger than the sum of its proper divisors (1).

149851249 is an equidigital number, since it uses as much as digits as its factorization.

149851249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 43.

The square root of 149851249 is about 12241.3744734813. The cubic root of 149851249 is about 531.1535914742.

The spelling of 149851249 in words is "one hundred forty-nine million, eight hundred fifty-one thousand, two hundred forty-nine".