149542811837 has 16 divisors (see below), whose sum is σ = 152560779840. Its totient is φ = 146552395392.

The previous prime is 149542811783. The next prime is 149542811843. The reversal of 149542811837 is 738118245941.

It is a happy number.

149542811837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 149542811837 - 2²⁴ = 149526034621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149542811137) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 19374503 + ... + 19382219.

It is an arithmetic number, because the mean of its divisors is an integer number (9535048740).

Almost surely, 2^149542811837 is an apocalyptic number.

It is an amenable number.

149542811837 is a deficient number, since it is larger than the sum of its proper divisors (3017968003).

149542811837 is a wasteful number, since it uses less digits than its factorization.

149542811837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9452.

The product of its digits is 1935360, while the sum is 53.

The spelling of 149542811837 in words is "one hundred forty-nine billion, five hundred forty-two million, eight hundred eleven thousand, eight hundred thirty-seven".