149396944481 has 4 divisors (see below), whose sum is σ = 149804020992. Its totient is φ = 148989867972.

The previous prime is 149396944453. The next prime is 149396944483. The reversal of 149396944481 is 184449693941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149396944481 is a prime.

It is a super-2 number, since 2×149396944481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149396944483) 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, 203537705 + ... + 203538438.

It is an arithmetic number, because the mean of its divisors is an integer number (37451005248).

Almost surely, 2^149396944481 is an apocalyptic number.

It is an amenable number.

149396944481 is a deficient number, since it is larger than the sum of its proper divisors (407076511).

149396944481 is an equidigital number, since it uses as much as digits as its factorization.

149396944481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407076510.

The product of its digits is 26873856, while the sum is 62.

The spelling of 149396944481 in words is "one hundred forty-nine billion, three hundred ninety-six million, nine hundred forty-four thousand, four hundred eighty-one".