1241909061 has 4 divisors (see below), whose sum is σ = 1655878752. Its totient is φ = 827939372.

The previous prime is 1241909057. The next prime is 1241909063. The reversal of 1241909061 is 1609091421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1241909061 - 2² = 1241909057 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 (1241909063) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 206984841 + ... + 206984846.

It is an arithmetic number, because the mean of its divisors is an integer number (413969688).

Almost surely, 2^1241909061 is an apocalyptic number.

It is an amenable number.

1241909061 is a deficient number, since it is larger than the sum of its proper divisors (413969691).

1241909061 is an equidigital number, since it uses as much as digits as its factorization.

1241909061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413969690.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 1241909061 is about 35240.7301428333. The cubic root of 1241909061 is about 1074.8881256572. Note that the first 3 decimals are identical.

The spelling of 1241909061 in words is "one billion, two hundred forty-one million, nine hundred nine thousand, sixty-one".