1241542045 has 8 divisors (see below), whose sum is σ = 1577488824. Its totient is φ = 934808064.

The previous prime is 1241542021. The next prime is 1241542069. The reversal of 1241542045 is 5402451421.

It is an interprime number because it is at equal distance from previous prime (1241542021) and next prime (1241542069).

It can be written as a sum of positive squares in 4 ways, for example, as 647498916 + 594043129 = 25446^2 + 24373^2 .

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-1241542045 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 7303104 + ... + 7303273.

It is an arithmetic number, because the mean of its divisors is an integer number (197186103).

Almost surely, 2^1241542045 is an apocalyptic number.

It is an amenable number.

1241542045 is a deficient number, since it is larger than the sum of its proper divisors (335946779).

1241542045 is a wasteful number, since it uses less digits than its factorization.

1241542045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14606399.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 1241542045 is about 35235.5224879666. The cubic root of 1241542045 is about 1074.7822295491.

Adding to 1241542045 its reverse (5402451421), we get a palindrome (6643993466).

The spelling of 1241542045 in words is "one billion, two hundred forty-one million, five hundred forty-two thousand, forty-five".