147999122 has 8 divisors (see below), whose sum is σ = 229653900. Its totient is φ = 71447824.

The previous prime is 147999119. The next prime is 147999143. The reversal of 147999122 is 221999741.

It can be written as a sum of positive squares in 2 ways, for example, as 146627881 + 1371241 = 12109^2 + 1171^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×147999122² = 43807480225541768, which contains 22 as substring.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1275797 + ... + 1275912.

Almost surely, 2^147999122 is an apocalyptic number.

147999122 is a deficient number, since it is larger than the sum of its proper divisors (81654778).

147999122 is a wasteful number, since it uses less digits than its factorization.

147999122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551740.

The product of its digits is 81648, while the sum is 44.

The square root of 147999122 is about 12165.4889749652. The cubic root of 147999122 is about 528.9562012663.

The spelling of 147999122 in words is "one hundred forty-seven million, nine hundred ninety-nine thousand, one hundred twenty-two".