148752869509 has 4 divisors (see below), whose sum is σ = 148762848460. Its totient is φ = 148742890560.

The previous prime is 148752869483. The next prime is 148752869539. The reversal of 148752869509 is 905968257841.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 87692976900 + 61059892609 = 296130^2 + 247103^2 .

It is a cyclic number.

It is not a de Polignac number, because 148752869509 - 2⁵ = 148752869477 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 (148752869539) 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, 4967082 + ... + 4996939.

It is an arithmetic number, because the mean of its divisors is an integer number (37190712115).

Almost surely, 2^148752869509 is an apocalyptic number.

It is an amenable number.

148752869509 is a deficient number, since it is larger than the sum of its proper divisors (9978951).

148752869509 is an equidigital number, since it uses as much as digits as its factorization.

148752869509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9978950.

The product of its (nonzero) digits is 43545600, while the sum is 64.

The spelling of 148752869509 in words is "one hundred forty-eight billion, seven hundred fifty-two million, eight hundred sixty-nine thousand, five hundred nine".