148875745 has 4 divisors (see below), whose sum is σ = 178650900. Its totient is φ = 119100592.

The previous prime is 148875677. The next prime is 148875751. The reversal of 148875745 is 547578841.

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 99440784 + 49434961 = 9972^2 + 7031^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148875745 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14887570 + ... + 14887579.

It is an arithmetic number, because the mean of its divisors is an integer number (44662725).

Almost surely, 2^148875745 is an apocalyptic number.

It is an amenable number.

148875745 is a deficient number, since it is larger than the sum of its proper divisors (29775155).

148875745 is an equidigital number, since it uses as much as digits as its factorization.

148875745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29775154.

The product of its digits is 1254400, while the sum is 49.

The square root of 148875745 is about 12201.4648710718. The cubic root of 148875745 is about 529.9985107351.

The spelling of 148875745 in words is "one hundred forty-eight million, eight hundred seventy-five thousand, seven hundred forty-five".