149249445017 has 2 divisors, whose sum is σ = 149249445018. Its totient is φ = 149249445016.

The previous prime is 149249445011. The next prime is 149249445041. The reversal of 149249445017 is 710544942941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149122634896 + 126810121 = 386164^2 + 11261^2 .

It is a cyclic number.

It is not a de Polignac number, because 149249445017 - 2⁴ = 149249445001 is a prime.

It is a super-2 number, since 2×149249445017² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (149249445011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74624722508 + 74624722509.

It is an arithmetic number, because the mean of its divisors is an integer number (74624722509).

Almost surely, 2^149249445017 is an apocalyptic number.

It is an amenable number.

149249445017 is a deficient number, since it is larger than the sum of its proper divisors (1).

149249445017 is an equidigital number, since it uses as much as digits as its factorization.

149249445017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 149249445017 in words is "one hundred forty-nine billion, two hundred forty-nine million, four hundred forty-five thousand, seventeen".