149134404781 has 32 divisors (see below), whose sum is σ = 163401728000. Its totient is φ = 135590034240.

The previous prime is 149134404779. The next prime is 149134404803. The reversal of 149134404781 is 187404431941.

149134404781 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 149134404781 - 2¹ = 149134404779 is a prime.

It is a super-2 number, since 2×149134404781² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149134404481) 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 31 ways as a sum of consecutive naturals, for example, 36381070 + ... + 36385168.

It is an arithmetic number, because the mean of its divisors is an integer number (5106304000).

Almost surely, 2^149134404781 is an apocalyptic number.

It is an amenable number.

149134404781 is a deficient number, since it is larger than the sum of its proper divisors (14267323219).

149134404781 is a wasteful number, since it uses less digits than its factorization.

149134404781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4649.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 149134404781 in words is "one hundred forty-nine billion, one hundred thirty-four million, four hundred four thousand, seven hundred eighty-one".