615228441 has 4 divisors (see below), whose sum is σ = 820304592. Its totient is φ = 410152292.

The previous prime is 615228421. The next prime is 615228443. The reversal of 615228441 is 144822516.

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 not a de Polignac number, because 615228441 - 2⁵ = 615228409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (615228443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102538071 + ... + 102538076.

It is an arithmetic number, because the mean of its divisors is an integer number (205076148).

Almost surely, 2^615228441 is an apocalyptic number.

It is an amenable number.

615228441 is a deficient number, since it is larger than the sum of its proper divisors (205076151).

615228441 is a wasteful number, since it uses less digits than its factorization.

615228441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205076150.

The product of its digits is 15360, while the sum is 33.

The square root of 615228441 is about 24803.7989227457. The cubic root of 615228441 is about 850.5087800612.

The spelling of 615228441 in words is "six hundred fifteen million, two hundred twenty-eight thousand, four hundred forty-one".