149491745299 has 4 divisors (see below), whose sum is σ = 160991110336. Its totient is φ = 137992380264.

The previous prime is 149491745281. The next prime is 149491745341. The reversal of 149491745299 is 992547194941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 149491745299 - 2¹⁷ = 149491614227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149491745299.

It is not an unprimeable number, because it can be changed into a prime (149491745239) 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, 5749682499 + ... + 5749682524.

It is an arithmetic number, because the mean of its divisors is an integer number (40247777584).

Almost surely, 2^149491745299 is an apocalyptic number.

149491745299 is a deficient number, since it is larger than the sum of its proper divisors (11499365037).

149491745299 is a wasteful number, since it uses less digits than its factorization.

149491745299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11499365036.

The product of its digits is 29393280, while the sum is 64.

The spelling of 149491745299 in words is "one hundred forty-nine billion, four hundred ninety-one million, seven hundred forty-five thousand, two hundred ninety-nine".