1201424555 has 8 divisors (see below), whose sum is σ = 1445418000. Its totient is φ = 958667296.

The previous prime is 1201424533. The next prime is 1201424563. The reversal of 1201424555 is 5554241021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201424555 - 2¹⁸ = 1201162411 is a prime.

It is a super-2 number, since 2×1201424555² = 2886841922713896050, which contains 22 as substring.

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, 306905 + ... + 310794.

It is an arithmetic number, because the mean of its divisors is an integer number (180677250).

Almost surely, 2^1201424555 is an apocalyptic number.

1201424555 is a deficient number, since it is larger than the sum of its proper divisors (243993445).

1201424555 is an equidigital number, since it uses as much as digits as its factorization.

1201424555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618093.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 1201424555 is about 34661.5717329725. The cubic root of 1201424555 is about 1063.0789072218.

Adding to 1201424555 its reverse (5554241021), we get a palindrome (6755665576).

The spelling of 1201424555 in words is "one billion, two hundred one million, four hundred twenty-four thousand, five hundred fifty-five".