149945193388 has 12 divisors (see below), whose sum is σ = 262406912152. Its totient is φ = 74971789920.

The previous prime is 149945193379. The next prime is 149945193401. The reversal of 149945193388 is 883391549941.

149945193388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×149945193388² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451603 + ... + 709813.

Almost surely, 2^149945193388 is an apocalyptic number.

It is an amenable number.

149945193388 is a deficient number, since it is larger than the sum of its proper divisors (112461718764).

149945193388 is a wasteful number, since it uses less digits than its factorization.

149945193388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403392 (or 403390 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 64.

The spelling of 149945193388 in words is "one hundred forty-nine billion, nine hundred forty-five million, one hundred ninety-three thousand, three hundred eighty-eight".