1241227145 has 8 divisors (see below), whose sum is σ = 1503138120. Its totient is φ = 983871360.

The previous prime is 1241227139. The next prime is 1241227151. The reversal of 1241227145 is 5417221421.

It is an interprime number because it is at equal distance from previous prime (1241227139) and next prime (1241227151).

It can be written as a sum of positive squares in 4 ways, for example, as 641760889 + 599466256 = 25333^2 + 24484^2 .

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

It is not a de Polignac number, because 1241227145 - 2¹⁸ = 1240965001 is a prime.

It is an unprimeable number.

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, 1138196 + ... + 1139285.

It is an arithmetic number, because the mean of its divisors is an integer number (187892265).

Almost surely, 2^1241227145 is an apocalyptic number.

It is an amenable number.

1241227145 is a deficient number, since it is larger than the sum of its proper divisors (261910975).

1241227145 is a wasteful number, since it uses less digits than its factorization.

1241227145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277595.

The product of its digits is 4480, while the sum is 29.

The square root of 1241227145 is about 35231.0537026641. The cubic root of 1241227145 is about 1074.6913539739.

Adding to 1241227145 its reverse (5417221421), we get a palindrome (6658448566).

The spelling of 1241227145 in words is "one billion, two hundred forty-one million, two hundred twenty-seven thousand, one hundred forty-five".