615150561 has 8 divisors (see below), whose sum is σ = 839275360. Its totient is φ = 400563072.

The previous prime is 615150551. The next prime is 615150589. The reversal of 615150561 is 165051516.

615150561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 615150561 - 2²¹ = 613053409 is a prime.

It is a super-2 number, since 2×615150561² = 756820425397229442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (615150521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2384176 + ... + 2384433.

It is an arithmetic number, because the mean of its divisors is an integer number (104909420).

Almost surely, 2^615150561 is an apocalyptic number.

It is an amenable number.

615150561 is a deficient number, since it is larger than the sum of its proper divisors (224124799).

615150561 is a wasteful number, since it uses less digits than its factorization.

615150561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4768655.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 615150561 is about 24802.2289522535. The cubic root of 615150561 is about 850.4728907261.

The spelling of 615150561 in words is "six hundred fifteen million, one hundred fifty thousand, five hundred sixty-one".