148975799 has 4 divisors (see below), whose sum is σ = 170258064. Its totient is φ = 127693536.

The previous prime is 148975769. The next prime is 148975829. The reversal of 148975799 is 997579841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 997579841 = 47 ⋅21225103.

It is an interprime number because it is at equal distance from previous prime (148975769) and next prime (148975829).

It is a cyclic number.

It is not a de Polignac number, because 148975799 - 2¹⁶ = 148910263 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 (148975769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10641122 + ... + 10641135.

It is an arithmetic number, because the mean of its divisors is an integer number (42564516).

Almost surely, 2^148975799 is an apocalyptic number.

148975799 is a deficient number, since it is larger than the sum of its proper divisors (21282265).

148975799 is an equidigital number, since it uses as much as digits as its factorization.

148975799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21282264.

The product of its digits is 5715360, while the sum is 59.

The square root of 148975799 is about 12205.5642638921. The cubic root of 148975799 is about 530.1172150858.

The spelling of 148975799 in words is "one hundred forty-eight million, nine hundred seventy-five thousand, seven hundred ninety-nine".