1240204141 has 12 divisors (see below), whose sum is σ = 1364562976. Its totient is φ = 1126330920.

The previous prime is 1240204139. The next prime is 1240204159. The reversal of 1240204141 is 1414020421.

It is not a de Polignac number, because 1240204141 - 2¹ = 1240204139 is a prime.

It is a super-2 number, since 2×1240204141² = 3076212622707095762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240204541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131320 + ... + 140446.

Almost surely, 2^1240204141 is an apocalyptic number.

1240204141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1240204141 is a deficient number, since it is larger than the sum of its proper divisors (124358835).

1240204141 is a wasteful number, since it uses less digits than its factorization.

1240204141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10272 (or 10261 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1240204141 is about 35216.5322114486. The cubic root of 1240204141 is about 1074.3960237335.

Adding to 1240204141 its reverse (1414020421), we get a palindrome (2654224562).

The spelling of 1240204141 in words is "one billion, two hundred forty million, two hundred four thousand, one hundred forty-one".