148730399 has 4 divisors (see below), whose sum is σ = 157479264. Its totient is φ = 139981536.

The previous prime is 148730389. The next prime is 148730429. The reversal of 148730399 is 993037841.

It is a happy number.

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

It is not a de Polignac number, because 148730399 - 2⁸ = 148730143 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 (148730359) 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, 4374407 + ... + 4374440.

It is an arithmetic number, because the mean of its divisors is an integer number (39369816).

Almost surely, 2^148730399 is an apocalyptic number.

148730399 is a deficient number, since it is larger than the sum of its proper divisors (8748865).

148730399 is an equidigital number, since it uses as much as digits as its factorization.

148730399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8748864.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 148730399 is about 12195.5073285206. The cubic root of 148730399 is about 529.8259770425.

The spelling of 148730399 in words is "one hundred forty-eight million, seven hundred thirty thousand, three hundred ninety-nine".