1242000454 has 8 divisors (see below), whose sum is σ = 1908439848. Its totient is φ = 605853840.

The previous prime is 1242000451. The next prime is 1242000457. The reversal of 1242000454 is 4540002421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1242000451) and next prime (1242000457).

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

It is a super-2 number, since 2×1242000454² = 3085130255472412232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242000451) by changing a digit.

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, 7573092 + ... + 7573255.

It is an arithmetic number, because the mean of its divisors is an integer number (238554981).

Almost surely, 2^1242000454 is an apocalyptic number.

1242000454 is a deficient number, since it is larger than the sum of its proper divisors (666439394).

1242000454 is a wasteful number, since it uses less digits than its factorization.

1242000454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15146390.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1242000454 is about 35242.0268145860. The cubic root of 1242000454 is about 1074.9144922793.

Adding to 1242000454 its reverse (4540002421), we get a palindrome (5782002875).

The spelling of 1242000454 in words is "one billion, two hundred forty-two million, four hundred fifty-four", and thus it is an aban number.