148520537 has 4 divisors (see below), whose sum is σ = 162022416. Its totient is φ = 135018660.

The previous prime is 148520503. The next prime is 148520539. The reversal of 148520537 is 735025841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148520537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 148520497 and 148520506.

It is not an unprimeable number, because it can be changed into a prime (148520539) 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, 6750923 + ... + 6750944.

It is an arithmetic number, because the mean of its divisors is an integer number (40505604).

Almost surely, 2^148520537 is an apocalyptic number.

It is an amenable number.

148520537 is a deficient number, since it is larger than the sum of its proper divisors (13501879).

148520537 is a wasteful number, since it uses less digits than its factorization.

148520537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13501878.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 148520537 is about 12186.9002211391. The cubic root of 148520537 is about 529.5766608786.

It can be divided in two parts, 1485 and 20537, that added together give a palindrome (22022).

The spelling of 148520537 in words is "one hundred forty-eight million, five hundred twenty thousand, five hundred thirty-seven".