149228039 has 2 divisors, whose sum is σ = 149228040. Its totient is φ = 149228038.

The previous prime is 149228003. The next prime is 149228059. The reversal of 149228039 is 930822941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149228039 - 2²⁴ = 132450823 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 149227993 and 149228011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149228059) 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, 74614019 + 74614020.

It is an arithmetic number, because the mean of its divisors is an integer number (74614020).

Almost surely, 2^149228039 is an apocalyptic number.

149228039 is a deficient number, since it is larger than the sum of its proper divisors (1).

149228039 is an equidigital number, since it uses as much as digits as its factorization.

149228039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 149228039 is about 12215.8928859089. The cubic root of 149228039 is about 530.4162376343.

The spelling of 149228039 in words is "one hundred forty-nine million, two hundred twenty-eight thousand, thirty-nine".