1012045104 has 200 divisors, whose sum is σ = 3367977888. Its totient is φ = 287400960.

The previous prime is 1012045087. The next prime is 1012045121. The reversal of 1012045104 is 4015402101.

It is an interprime number because it is at equal distance from previous prime (1012045087) and next prime (1012045121).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2549034 + ... + 2549430.

Almost surely, 2^1012045104 is an apocalyptic number.

1012045104 is a gapful number since it is divisible by the number (14) 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 1012045104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1683988944).

1012045104 is an abundant number, since it is smaller than the sum of its proper divisors (2355932784).

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

1012045104 is a wasteful number, since it uses less digits than its factorization.

1012045104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1012045104 is about 31812.6563493211. The cubic root of 1012045104 is about 1003.9990211786. Note that the first 3 decimals are identical.

Adding to 1012045104 its reverse (4015402101), we get a palindrome (5027447205).

The spelling of 1012045104 in words is "one billion, twelve million, forty-five thousand, one hundred four".