149885045923 has 4 divisors (see below), whose sum is σ = 151430252680. Its totient is φ = 148339839168.

The previous prime is 149885045899. The next prime is 149885046001. The reversal of 149885045923 is 329540588941.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 149885045923 - 2²¹ = 149882948771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149885015923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772603233 + ... + 772603426.

It is an arithmetic number, because the mean of its divisors is an integer number (37857563170).

Almost surely, 2^149885045923 is an apocalyptic number.

149885045923 is a deficient number, since it is larger than the sum of its proper divisors (1545206757).

149885045923 is an equidigital number, since it uses as much as digits as its factorization.

149885045923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545206756.

The product of its (nonzero) digits is 12441600, while the sum is 58.

The spelling of 149885045923 in words is "one hundred forty-nine billion, eight hundred eighty-five million, forty-five thousand, nine hundred twenty-three".