1241211613 has 8 divisors (see below), whose sum is σ = 1309381920. Its totient is φ = 1173325680.

The previous prime is 1241211557. The next prime is 1241211617. The reversal of 1241211613 is 3161121421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1241211613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241211617) 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, 62095 + ... + 79612.

It is an arithmetic number, because the mean of its divisors is an integer number (163672740).

Almost surely, 2^1241211613 is an apocalyptic number.

It is an amenable number.

1241211613 is a deficient number, since it is larger than the sum of its proper divisors (68170307).

1241211613 is a wasteful number, since it uses less digits than its factorization.

1241211613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142187.

The product of its digits is 288, while the sum is 22.

The square root of 1241211613 is about 35230.8332714399. The cubic root of 1241211613 is about 1074.6868712661.

It can be divided in two parts, 12412 and 11613, that added together give a square (24025 = 155²).

The spelling of 1241211613 in words is "one billion, two hundred forty-one million, two hundred eleven thousand, six hundred thirteen".