149550939361 has 4 divisors (see below), whose sum is σ = 152372655252. Its totient is φ = 146729223472.

The previous prime is 149550939353. The next prime is 149550939379. The reversal of 149550939361 is 163939055941.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 163939055941 = 997 ⋅164432353.

It can be written as a sum of positive squares in 2 ways, for example, as 104035277025 + 45515662336 = 322545^2 + 213344^2 .

It is a cyclic number.

It is not a de Polignac number, because 149550939361 - 2³ = 149550939353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149550939331) 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, 1410857866 + ... + 1410857971.

It is an arithmetic number, because the mean of its divisors is an integer number (38093163813).

Almost surely, 2^149550939361 is an apocalyptic number.

It is an amenable number.

149550939361 is a deficient number, since it is larger than the sum of its proper divisors (2821715891).

149550939361 is an equidigital number, since it uses as much as digits as its factorization.

149550939361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2821715890.

The product of its (nonzero) digits is 3936600, while the sum is 55.

The spelling of 149550939361 in words is "one hundred forty-nine billion, five hundred fifty million, nine hundred thirty-nine thousand, three hundred sixty-one".