1215041541 has 8 divisors (see below), whose sum is σ = 1851491904. Its totient is φ = 694309440.

The previous prime is 1215041537. The next prime is 1215041543. The reversal of 1215041541 is 1451405121.

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

It is not a de Polignac number, because 1215041541 - 2² = 1215041537 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215041543) 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, 28929540 + ... + 28929581.

It is an arithmetic number, because the mean of its divisors is an integer number (231436488).

Almost surely, 2^1215041541 is an apocalyptic number.

It is an amenable number.

1215041541 is a deficient number, since it is larger than the sum of its proper divisors (636450363).

1215041541 is an equidigital number, since it uses as much as digits as its factorization.

1215041541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57859131.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 1215041541 is about 34857.4459907779. The cubic root of 1215041541 is about 1067.0801522705.

Adding to 1215041541 its reverse (1451405121), we get a palindrome (2666446662).

The spelling of 1215041541 in words is "one billion, two hundred fifteen million, forty-one thousand, five hundred forty-one".