1012144405 has 8 divisors (see below), whose sum is σ = 1231680384. Its totient is φ = 798310800.

The previous prime is 1012144387. The next prime is 1012144429. The reversal of 1012144405 is 5044412101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1012144405 - 2⁵ = 1012144373 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 1425201 + ... + 1425910.

It is an arithmetic number, because the mean of its divisors is an integer number (153960048).

Almost surely, 2^1012144405 is an apocalyptic number.

It is an amenable number.

1012144405 is a deficient number, since it is larger than the sum of its proper divisors (219535979).

1012144405 is an equidigital number, since it uses as much as digits as its factorization.

1012144405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851187.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1012144405 is about 31814.2170263547. The cubic root of 1012144405 is about 1004.0318572798.

Adding to 1012144405 its reverse (5044412101), we get a palindrome (6056556506).

The spelling of 1012144405 in words is "one billion, twelve million, one hundred forty-four thousand, four hundred five".