149248039 has 2 divisors, whose sum is σ = 149248040. Its totient is φ = 149248038.

The previous prime is 149248037. The next prime is 149248051. The reversal of 149248039 is 930842941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149248039 - 2¹ = 149248037 is a prime.

Together with 149248037, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 149247992 and 149248010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149248031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74624019 + 74624020.

It is an arithmetic number, because the mean of its divisors is an integer number (74624020).

Almost surely, 2^149248039 is an apocalyptic number.

149248039 is a deficient number, since it is larger than the sum of its proper divisors (1).

149248039 is an equidigital number, since it uses as much as digits as its factorization.

149248039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 149248039 is about 12216.7114642198. The cubic root of 149248039 is about 530.4399325800.

The spelling of 149248039 in words is "one hundred forty-nine million, two hundred forty-eight thousand, thirty-nine".