1240142241 has 8 divisors (see below), whose sum is σ = 1780717120. Its totient is φ = 763164432.

The previous prime is 1240142227. The next prime is 1240142263. The reversal of 1240142241 is 1422410421.

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

It is not a de Polignac number, because 1240142241 - 2¹⁸ = 1239880097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1240142201) 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, 15899221 + ... + 15899298.

It is an arithmetic number, because the mean of its divisors is an integer number (222589640).

Almost surely, 2^1240142241 is an apocalyptic number.

It is an amenable number.

1240142241 is a deficient number, since it is larger than the sum of its proper divisors (540574879).

1240142241 is a wasteful number, since it uses less digits than its factorization.

1240142241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31798535.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1240142241 is about 35215.6533518832. The cubic root of 1240142241 is about 1074.3781486601.

Adding to 1240142241 its reverse (1422410421), we get a palindrome (2662552662).

The spelling of 1240142241 in words is "one billion, two hundred forty million, one hundred forty-two thousand, two hundred forty-one".