149134218599 has 4 divisors (see below), whose sum is σ = 149160531240. Its totient is φ = 149107905960.

The previous prime is 149134218589. The next prime is 149134218617. The reversal of 149134218599 is 995812431941.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149134218599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149134218509) 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, 13147817 + ... + 13159154.

It is an arithmetic number, because the mean of its divisors is an integer number (37290132810).

Almost surely, 2^149134218599 is an apocalyptic number.

149134218599 is a deficient number, since it is larger than the sum of its proper divisors (26312641).

149134218599 is an equidigital number, since it uses as much as digits as its factorization.

149134218599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26312640.

The product of its digits is 2799360, while the sum is 56.

The spelling of 149134218599 in words is "one hundred forty-nine billion, one hundred thirty-four million, two hundred eighteen thousand, five hundred ninety-nine".