152454545 has 4 divisors (see below), whose sum is σ = 182945460. Its totient is φ = 121963632.

The previous prime is 152454539. The next prime is 152454569. The reversal of 152454545 is 545454251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545454251 = 719 ⋅758629.

It can be written as a sum of positive squares in 2 ways, for example, as 97160449 + 55294096 = 9857^2 + 7436^2 .

It is a cyclic number.

It is not a de Polignac number, because 152454545 - 2⁴ = 152454529 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15245450 + ... + 15245459.

It is an arithmetic number, because the mean of its divisors is an integer number (45736365).

Almost surely, 2^152454545 is an apocalyptic number.

It is an amenable number.

152454545 is a deficient number, since it is larger than the sum of its proper divisors (30490915).

152454545 is an equidigital number, since it uses as much as digits as its factorization.

152454545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30490914.

The product of its digits is 80000, while the sum is 35.

The square root of 152454545 is about 12347.2484789122. The cubic root of 152454545 is about 534.2117778117.

The spelling of 152454545 in words is "one hundred fifty-two million, four hundred fifty-four thousand, five hundred forty-five".