149351892722 has 6 divisors (see below), whose sum is σ = 224028658893. Its totient is φ = 74675673092.

The previous prime is 149351892707. The next prime is 149351892749. The reversal of 149351892722 is 227298153941.

It can be written as a sum of positive squares in 2 ways, for example, as 149095604641 + 256288081 = 386129^2 + 16009^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=273269.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 409904 + ... + 683172.

Almost surely, 2^149351892722 is an apocalyptic number.

149351892722 is a deficient number, since it is larger than the sum of its proper divisors (74676766171).

149351892722 is an frugal number, since it uses more digits than its factorization.

149351892722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546540 (or 273271 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The spelling of 149351892722 in words is "one hundred forty-nine billion, three hundred fifty-one million, eight hundred ninety-two thousand, seven hundred twenty-two".