615541441 has 8 divisors (see below), whose sum is σ = 623877120. Its totient is φ = 607260528.

The previous prime is 615541373. The next prime is 615541453. The reversal of 615541441 is 144145516.

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

It is a cyclic number.

It is not a de Polignac number, because 615541441 - 2⁷ = 615541313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (615541141) 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, 9195 + ... + 36271.

It is an arithmetic number, because the mean of its divisors is an integer number (77984640).

Almost surely, 2^615541441 is an apocalyptic number.

It is an amenable number.

615541441 is a deficient number, since it is larger than the sum of its proper divisors (8335679).

615541441 is a wasteful number, since it uses less digits than its factorization.

615541441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27383.

The product of its digits is 9600, while the sum is 31.

The square root of 615541441 is about 24810.1076378157. The cubic root of 615541441 is about 850.6529888884.

Adding to 615541441 its reverse (144145516), we get a palindrome (759686957).

The spelling of 615541441 in words is "six hundred fifteen million, five hundred forty-one thousand, four hundred forty-one".