152540545 has 4 divisors (see below), whose sum is σ = 183048660. Its totient is φ = 122032432.

The previous prime is 152540543. The next prime is 152540567. The reversal of 152540545 is 545045251.

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 119224561 + 33315984 = 10919^2 + 5772^2 .

It is a cyclic number.

It is not a de Polignac number, because 152540545 - 2¹ = 152540543 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 not an unprimeable number, because it can be changed into a prime (152540543) 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, 15254050 + ... + 15254059.

It is an arithmetic number, because the mean of its divisors is an integer number (45762165).

Almost surely, 2^152540545 is an apocalyptic number.

It is an amenable number.

152540545 is a deficient number, since it is larger than the sum of its proper divisors (30508115).

152540545 is an equidigital number, since it uses as much as digits as its factorization.

152540545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30508114.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 152540545 is about 12350.7305451945. The cubic root of 152540545 is about 534.3122090078.

Adding to 152540545 its reverse (545045251), we get a palindrome (697585796).

The spelling of 152540545 in words is "one hundred fifty-two million, five hundred forty thousand, five hundred forty-five".