1241561406 has 8 divisors (see below), whose sum is σ = 2483122824. Its totient is φ = 413853800.

The previous prime is 1241561359. The next prime is 1241561507. The reversal of 1241561406 is 6041651421.

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

1241561406 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103463445 + ... + 103463456.

It is an arithmetic number, because the mean of its divisors is an integer number (310390353).

Almost surely, 2^1241561406 is an apocalyptic number.

1241561406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1241561406 is a wasteful number, since it uses less digits than its factorization.

1241561406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206926906.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1241561406 is about 35235.7972238461. The cubic root of 1241561406 is about 1074.7878163516.

The spelling of 1241561406 in words is "one billion, two hundred forty-one million, five hundred sixty-one thousand, four hundred six".