1042521215 has 8 divisors (see below), whose sum is σ = 1251471840. Its totient is φ = 833719392.

The previous prime is 1042521211. The next prime is 1042521229. The reversal of 1042521215 is 5121252401.

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 1042521215 - 2² = 1042521211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042521211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21155 + ... + 50324.

It is an arithmetic number, because the mean of its divisors is an integer number (156433980).

Almost surely, 2^1042521215 is an apocalyptic number.

1042521215 is a deficient number, since it is larger than the sum of its proper divisors (208950625).

1042521215 is an equidigital number, since it uses as much as digits as its factorization.

1042521215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74401.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1042521215 is about 32288.0971102355. The cubic root of 1042521215 is about 1013.9774587252.

Adding to 1042521215 its reverse (5121252401), we get a palindrome (6163773616).

The spelling of 1042521215 in words is "one billion, forty-two million, five hundred twenty-one thousand, two hundred fifteen".