1242018654 has 16 divisors (see below), whose sum is σ = 2501909760. Its totient is φ = 411027480.

The previous prime is 1242018647. The next prime is 1242018667. The reversal of 1242018654 is 4568102421.

It is a happy number.

1242018654 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1242018654² = 3085220673767943432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 743782 + ... + 745449.

It is an arithmetic number, because the mean of its divisors is an integer number (156369360).

Almost surely, 2^1242018654 is an apocalyptic number.

1242018654 is an abundant number, since it is smaller than the sum of its proper divisors (1259891106).

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

1242018654 is a wasteful number, since it uses less digits than its factorization.

1242018654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489375.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 1242018654 is about 35242.2850280739. The cubic root of 1242018654 is about 1074.9197427734.

The spelling of 1242018654 in words is "one billion, two hundred forty-two million, eighteen thousand, six hundred fifty-four".