1241615220 has 48 divisors (see below), whose sum is σ = 3510960768. Its totient is φ = 327817600.

The previous prime is 1241615209. The next prime is 1241615227. The reversal of 1241615220 is 225161421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241615227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96384 + ... + 108503.

It is an arithmetic number, because the mean of its divisors is an integer number (73145016).

Almost surely, 2^1241615220 is an apocalyptic number.

1241615220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1241615220 is an abundant number, since it is smaller than the sum of its proper divisors (2269345548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1241615220 is a wasteful number, since it uses less digits than its factorization.

1241615220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205000 (or 204998 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1241615220 is about 35236.5608423978. The cubic root of 1241615220 is about 1074.8033445931.

Adding to 1241615220 its reverse (225161421), we get a palindrome (1466776641).

The spelling of 1241615220 in words is "one billion, two hundred forty-one million, six hundred fifteen thousand, two hundred twenty".