1061541012 has 96 divisors (see below), whose sum is σ = 2881105920. Its totient is φ = 297947520.

The previous prime is 1061540999. The next prime is 1061541067. The reversal of 1061541012 is 2101451601.

It is a super-2 number, since 2×1061541012² = 2253738640315968288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1061541012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2302462 + ... + 2302922.

It is an arithmetic number, because the mean of its divisors is an integer number (30011520).

Almost surely, 2^1061541012 is an apocalyptic number.

1061541012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1061541012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1440552960).

1061541012 is an abundant number, since it is smaller than the sum of its proper divisors (1819564908).

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

1061541012 is a wasteful number, since it uses less digits than its factorization.

1061541012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 899 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1061541012 is about 32581.2985008271. The cubic root of 1061541012 is about 1020.1066824210.

Adding to 1061541012 its reverse (2101451601), we get a palindrome (3162992613).

The spelling of 1061541012 in words is "one billion, sixty-one million, five hundred forty-one thousand, twelve".