148728387 has 4 divisors (see below), whose sum is σ = 198304520. Its totient is φ = 99152256.

The previous prime is 148728383. The next prime is 148728389. The reversal of 148728387 is 783827841.

It is a happy number.

148728387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 148728387 - 2² = 148728383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148728383) 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, 24788062 + ... + 24788067.

It is an arithmetic number, because the mean of its divisors is an integer number (49576130).

Almost surely, 2^148728387 is an apocalyptic number.

148728387 is a deficient number, since it is larger than the sum of its proper divisors (49576133).

148728387 is an equidigital number, since it uses as much as digits as its factorization.

148728387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49576132.

The product of its digits is 602112, while the sum is 48.

The square root of 148728387 is about 12195.4248388484. The cubic root of 148728387 is about 529.8235878993.

The spelling of 148728387 in words is "one hundred forty-eight million, seven hundred twenty-eight thousand, three hundred eighty-seven".