1020143454 has 32 divisors (see below), whose sum is σ = 2250789120. Its totient is φ = 305659200.

The previous prime is 1020143447. The next prime is 1020143473. The reversal of 1020143454 is 4543410201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80962 + ... + 92709.

It is an arithmetic number, because the mean of its divisors is an integer number (70337160).

Almost surely, 2^1020143454 is an apocalyptic number.

1020143454 is an abundant number, since it is smaller than the sum of its proper divisors (1230645666).

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

1020143454 is a wasteful number, since it uses less digits than its factorization.

1020143454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173776.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1020143454 is about 31939.6846258694. The cubic root of 1020143454 is about 1006.6698982153.

Adding to 1020143454 its reverse (4543410201), we get a palindrome (5563553655).

The spelling of 1020143454 in words is "one billion, twenty million, one hundred forty-three thousand, four hundred fifty-four".