1242141005 has 8 divisors (see below), whose sum is σ = 1703507712. Its totient is φ = 851753808.

The previous prime is 1242140993. The next prime is 1242141007. The reversal of 1242141005 is 5001412421.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1242141005 - 2⁸ = 1242140749 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 (1242141007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17744837 + ... + 17744906.

It is an arithmetic number, because the mean of its divisors is an integer number (212938464).

Almost surely, 2^1242141005 is an apocalyptic number.

It is an amenable number.

1242141005 is a deficient number, since it is larger than the sum of its proper divisors (461366707).

1242141005 is an equidigital number, since it uses as much as digits as its factorization.

1242141005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35489755.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1242141005 is about 35244.0208404206. The cubic root of 1242141005 is about 1074.9550383214.

Adding to 1242141005 its reverse (5001412421), we get a palindrome (6243553426).

The spelling of 1242141005 in words is "one billion, two hundred forty-two million, one hundred forty-one thousand, five".