148975597 has 4 divisors (see below), whose sum is σ = 149151100. Its totient is φ = 148800096.

The previous prime is 148975583. The next prime is 148975601. The reversal of 148975597 is 795579841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 795579841 = 7 ⋅113654263.

It can be written as a sum of positive squares in 2 ways, for example, as 11874916 + 137100681 = 3446^2 + 11709^2 .

It is a cyclic number.

It is not a de Polignac number, because 148975597 - 2⁷ = 148975469 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 (148975507) 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, 86472 + ... + 88177.

It is an arithmetic number, because the mean of its divisors is an integer number (37287775).

Almost surely, 2^148975597 is an apocalyptic number.

It is an amenable number.

148975597 is a deficient number, since it is larger than the sum of its proper divisors (175503).

148975597 is an equidigital number, since it uses as much as digits as its factorization.

148975597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175502.

The product of its digits is 3175200, while the sum is 55.

The square root of 148975597 is about 12205.5559889749. Note that the first 3 decimals coincide. The cubic root of 148975597 is about 530.1169754859.

The spelling of 148975597 in words is "one hundred forty-eight million, nine hundred seventy-five thousand, five hundred ninety-seven".