148506403 has 4 divisors (see below), whose sum is σ = 148579848. Its totient is φ = 148432960.

The previous prime is 148506401. The next prime is 148506427. The reversal of 148506403 is 304605841.

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: 304605841 = 109 ⋅2794549.

It is a cyclic number.

It is not a de Polignac number, because 148506403 - 2¹ = 148506401 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148506401) 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, 33601 + ... + 37762.

It is an arithmetic number, because the mean of its divisors is an integer number (37144962).

Almost surely, 2^148506403 is an apocalyptic number.

148506403 is a deficient number, since it is larger than the sum of its proper divisors (73445).

148506403 is an equidigital number, since it uses as much as digits as its factorization.

148506403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73444.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 148506403 is about 12186.3203223943. The cubic root of 148506403 is about 529.5598612402.

The spelling of 148506403 in words is "one hundred forty-eight million, five hundred six thousand, four hundred three".