1242430141 has 8 divisors (see below), whose sum is σ = 1287305784. Its totient is φ = 1198149120.

The previous prime is 1242430129. The next prime is 1242430157. The reversal of 1242430141 is 1410342421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 422466916 + 819963225 = 20554^2 + 28635^2 .

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 1242430141 - 2⁵ = 1242430109 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 (1242430181) 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, 144400 + ... + 152761.

It is an arithmetic number, because the mean of its divisors is an integer number (160913223).

Almost surely, 2^1242430141 is an apocalyptic number.

It is an amenable number.

1242430141 is a deficient number, since it is larger than the sum of its proper divisors (44875643).

1242430141 is a wasteful number, since it uses less digits than its factorization.

1242430141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297311.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1242430141 is about 35248.1225173767. The cubic root of 1242430141 is about 1075.0384384309.

Adding to 1242430141 its reverse (1410342421), we get a palindrome (2652772562).

The spelling of 1242430141 in words is "one billion, two hundred forty-two million, four hundred thirty thousand, one hundred forty-one".