149345193123 has 32 divisors (see below), whose sum is σ = 253091704320. Its totient is φ = 85261770720.

The previous prime is 149345193121. The next prime is 149345193133. The reversal of 149345193123 is 321391543941.

149345193123 is a `hidden beast` number, since 1 + 4 + 9 + 3 + 4 + 519 + 3 + 123 = 666.

It is not a de Polignac number, because 149345193123 - 2¹ = 149345193121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149345193121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155940 + ... + 568337.

It is an arithmetic number, because the mean of its divisors is an integer number (7909115760).

Almost surely, 2^149345193123 is an apocalyptic number.

149345193123 is a deficient number, since it is larger than the sum of its proper divisors (103746511197).

149345193123 is a wasteful number, since it uses less digits than its factorization.

149345193123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725384 (or 725378 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The spelling of 149345193123 in words is "one hundred forty-nine billion, three hundred forty-five million, one hundred ninety-three thousand, one hundred twenty-three".