1215250141 has 8 divisors (see below), whose sum is σ = 1389261440. Its totient is φ = 1041339888.

The previous prime is 1215250123. The next prime is 1215250159. The reversal of 1215250141 is 1410525121.

It is an interprime number because it is at equal distance from previous prime (1215250123) and next prime (1215250159).

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-1215250141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215250111) 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, 2560 + ... + 49366.

It is an arithmetic number, because the mean of its divisors is an integer number (173657680).

Almost surely, 2^1215250141 is an apocalyptic number.

It is an amenable number.

1215250141 is a deficient number, since it is larger than the sum of its proper divisors (174011299).

1215250141 is an equidigital number, since it uses as much as digits as its factorization.

1215250141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50523.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1215250141 is about 34860.4380494566. The cubic root of 1215250141 is about 1067.1412147048.

Adding to 1215250141 its reverse (1410525121), we get a palindrome (2625775262).

The spelling of 1215250141 in words is "one billion, two hundred fifteen million, two hundred fifty thousand, one hundred forty-one".