1242140502 has 16 divisors (see below), whose sum is σ = 2484683712. Its totient is φ = 413979720.

The previous prime is 1242140467. The next prime is 1242140509. The reversal of 1242140502 is 2050412421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242140509) 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, 36177 + ... + 61587.

It is an arithmetic number, because the mean of its divisors is an integer number (155292732).

Almost surely, 2^1242140502 is an apocalyptic number.

1242140502 is an abundant number, since it is smaller than the sum of its proper divisors (1242543210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242140502 is a wasteful number, since it uses less digits than its factorization.

1242140502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33563.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1242140502 is about 35244.0137044577. The cubic root of 1242140502 is about 1074.9548932218.

Adding to 1242140502 its reverse (2050412421), we get a palindrome (3292552923).

The spelling of 1242140502 in words is "one billion, two hundred forty-two million, one hundred forty thousand, five hundred two".