1242555354 has 24 divisors (see below), whose sum is σ = 2697146400. Its totient is φ = 413424648.

The previous prime is 1242555343. The next prime is 1242555359. The reversal of 1242555354 is 4535552421.

1242555354 is a `hidden beast` number, since 12 + 42 + 5 + 553 + 54 = 666.

It is not an unprimeable number, because it can be changed into a prime (1242555359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53254 + ... + 72945.

It is an arithmetic number, because the mean of its divisors is an integer number (112381100).

Almost surely, 2^1242555354 is an apocalyptic number.

1242555354 is an abundant number, since it is smaller than the sum of its proper divisors (1454591046).

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

1242555354 is a wasteful number, since it uses less digits than its factorization.

1242555354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126754 (or 126751 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 1242555354 is about 35249.8986381521. The cubic root of 1242555354 is about 1075.0745515991.

The spelling of 1242555354 in words is "one billion, two hundred forty-two million, five hundred fifty-five thousand, three hundred fifty-four".