148644534999 has 4 divisors (see below), whose sum is σ = 198192713336. Its totient is φ = 99096356664.

The previous prime is 148644534991. The next prime is 148644535037. The reversal of 148644534999 is 999435446841.

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

It is not a de Polignac number, because 148644534999 - 2³ = 148644534991 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 (148644534991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24774089164 + ... + 24774089169.

It is an arithmetic number, because the mean of its divisors is an integer number (49548178334).

Almost surely, 2^148644534999 is an apocalyptic number.

148644534999 is a deficient number, since it is larger than the sum of its proper divisors (49548178337).

148644534999 is an equidigital number, since it uses as much as digits as its factorization.

148644534999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49548178336.

The product of its digits is 134369280, while the sum is 66.

The spelling of 148644534999 in words is "one hundred forty-eight billion, six hundred forty-four million, five hundred thirty-four thousand, nine hundred ninety-nine".