1242140948 has 12 divisors (see below), whose sum is σ = 2184782292. Its totient is φ = 617917440.

The previous prime is 1242140947. The next prime is 1242140959. The reversal of 1242140948 is 8490412421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1229764624 + 12376324 = 35068^2 + 3518^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242140947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787373 + ... + 788948.

It is an arithmetic number, because the mean of its divisors is an integer number (182065191).

Almost surely, 2^1242140948 is an apocalyptic number.

It is an amenable number.

1242140948 is a deficient number, since it is larger than the sum of its proper divisors (942641344).

1242140948 is a wasteful number, since it uses less digits than its factorization.

1242140948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576522 (or 1576520 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 1242140948 is about 35244.0200317728. The cubic root of 1242140948 is about 1074.9550218787.

The spelling of 1242140948 in words is "one billion, two hundred forty-two million, one hundred forty thousand, nine hundred forty-eight".