1220052454 has 4 divisors (see below), whose sum is σ = 1830078684. Its totient is φ = 610026226.

The previous prime is 1220052439. The next prime is 1220052499. The reversal of 1220052454 is 4542500221.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1220052454² = 2977055981022844232, 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 as a sum of consecutive naturals, namely, 305013112 + ... + 305013115.

It is an arithmetic number, because the mean of its divisors is an integer number (457519671).

Almost surely, 2^1220052454 is an apocalyptic number.

1220052454 is a deficient number, since it is larger than the sum of its proper divisors (610026230).

1220052454 is an equidigital number, since it uses as much as digits as its factorization.

1220052454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610026229.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 1220052454 is about 34929.2492619008. The cubic root of 1220052454 is about 1068.5450437705.

Adding to 1220052454 its reverse (4542500221), we get a palindrome (5762552675).

The spelling of 1220052454 in words is "one billion, two hundred twenty million, fifty-two thousand, four hundred fifty-four".