1002055454 has 4 divisors (see below), whose sum is σ = 1503083184. Its totient is φ = 501027726.

The previous prime is 1002055433. The next prime is 1002055477. The reversal of 1002055454 is 4545502001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4545502001 = 21647 ⋅209983.

It is a super-2 number, since 2×1002055454² = 2008230265782292232, 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, 250513862 + ... + 250513865.

It is an arithmetic number, because the mean of its divisors is an integer number (375770796).

Almost surely, 2^1002055454 is an apocalyptic number.

1002055454 is a deficient number, since it is larger than the sum of its proper divisors (501027730).

1002055454 is an equidigital number, since it uses as much as digits as its factorization.

1002055454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501027729.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 1002055454 is about 31655.2594998051. The cubic root of 1002055454 is about 1000.6846824363.

Adding to 1002055454 its reverse (4545502001), we get a palindrome (5547557455).

The spelling of 1002055454 in words is "one billion, two million, fifty-five thousand, four hundred fifty-four".