1242351554 has 8 divisors (see below), whose sum is σ = 1895112720. Its totient is φ = 610647316.

The previous prime is 1242351547. The next prime is 1242351569. The reversal of 1242351554 is 4551532421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1242351554.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5264084 + ... + 5264319.

It is an arithmetic number, because the mean of its divisors is an integer number (236889090).

Almost surely, 2^1242351554 is an apocalyptic number.

1242351554 is a deficient number, since it is larger than the sum of its proper divisors (652761166).

1242351554 is a wasteful number, since it uses less digits than its factorization.

1242351554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10528464.

The product of its digits is 24000, while the sum is 32.

The square root of 1242351554 is about 35247.0077311536. The cubic root of 1242351554 is about 1075.0157716092.

Adding to 1242351554 its reverse (4551532421), we get a palindrome (5793883975).

The spelling of 1242351554 in words is "one billion, two hundred forty-two million, three hundred fifty-one thousand, five hundred fifty-four".