149949396289 has 81 divisors (see below), whose sum is σ = 197743933569. Its totient is φ = 113288886480.

The previous prime is 149949396283. The next prime is 149949396307. The reversal of 149949396289 is 982693949941.

The square root of 149949396289 is 387233.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 149949396289 - 2⁹ = 149949395777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149949396283) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1401396174 + ... + 1401396280.

Almost surely, 2^149949396289 is an apocalyptic number.

149949396289 is the 387233-rd square number.

149949396289 is the 193617-th centered octagonal number.

It is an amenable number.

149949396289 is a deficient number, since it is larger than the sum of its proper divisors (47794537280).

149949396289 is an equidigital number, since it uses as much as digits as its factorization.

149949396289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 172 counting only the distinct ones).

The product of its digits is 272097792, while the sum is 73.

The spelling of 149949396289 in words is "one hundred forty-nine billion, nine hundred forty-nine million, three hundred ninety-six thousand, two hundred eighty-nine".