149004725609 has 2 divisors, whose sum is σ = 149004725610. Its totient is φ = 149004725608.

The previous prime is 149004725599. The next prime is 149004725663. The reversal of 149004725609 is 906527400941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124770019984 + 24234705625 = 353228^2 + 155675^2 .

It is a cyclic number.

It is not a de Polignac number, because 149004725609 - 2¹⁶ = 149004660073 is a prime.

It is not a weakly prime, because it can be changed into another prime (149004715609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74502362804 + 74502362805.

It is an arithmetic number, because the mean of its divisors is an integer number (74502362805).

Almost surely, 2^149004725609 is an apocalyptic number.

It is an amenable number.

149004725609 is a deficient number, since it is larger than the sum of its proper divisors (1).

149004725609 is an equidigital number, since it uses as much as digits as its factorization.

149004725609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 149004725609 in words is "one hundred forty-nine billion, four million, seven hundred twenty-five thousand, six hundred nine".