1241861520 has 40 divisors (see below), whose sum is σ = 3849771456. Its totient is φ = 331163008.

The previous prime is 1241861501. The next prime is 1241861539. The reversal of 1241861520 is 251681421.

It is an interprime number because it is at equal distance from previous prime (1241861501) and next prime (1241861539).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2586972 + ... + 2587451.

Almost surely, 2^1241861520 is an apocalyptic number.

1241861520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1241861520 is an abundant number, since it is smaller than the sum of its proper divisors (2607909936).

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

1241861520 is a wasteful number, since it uses less digits than its factorization.

1241861520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5174439 (or 5174433 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1241861520 is about 35240.0556185713. The cubic root of 1241861520 is about 1074.8744097016.

The spelling of 1241861520 in words is "one billion, two hundred forty-one million, eight hundred sixty-one thousand, five hundred twenty".