1020112554 has 32 divisors (see below), whose sum is σ = 2097514944. Its totient is φ = 330549120.

The previous prime is 1020112547. The next prime is 1020112559. The reversal of 1020112554 is 4552110201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020112554.

It is not an unprimeable number, because it can be changed into a prime (1020112559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62292 + ... + 76944.

It is an arithmetic number, because the mean of its divisors is an integer number (65547342).

Almost surely, 2^1020112554 is an apocalyptic number.

1020112554 is an abundant number, since it is smaller than the sum of its proper divisors (1077402390).

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

1020112554 is a wasteful number, since it uses less digits than its factorization.

1020112554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14982.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1020112554 is about 31939.2008979561. The cubic root of 1020112554 is about 1006.6597341501.

Adding to 1020112554 its reverse (4552110201), we get a palindrome (5572222755).

The spelling of 1020112554 in words is "one billion, twenty million, one hundred twelve thousand, five hundred fifty-four".