1012152144 has 120 divisors (see below), whose sum is σ = 2738931840. Its totient is φ = 321896960.

The previous prime is 1012152133. The next prime is 1012152151. The reversal of 1012152144 is 4412512101.

It is a self number, because there is not a number n which added to its sum of digits gives 1012152144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11372452 + ... + 11372540.

It is an arithmetic number, because the mean of its divisors is an integer number (22824432).

Almost surely, 2^1012152144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012152144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1369465920).

1012152144 is an abundant number, since it is smaller than the sum of its proper divisors (1726779696).

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

1012152144 is an equidigital number, since it uses as much as digits as its factorization.

1012152144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1012152144 is about 31814.3386541352. The cubic root of 1012152144 is about 1004.0344162633.

Adding to 1012152144 its reverse (4412512101), we get a palindrome (5424664245).

The spelling of 1012152144 in words is "one billion, twelve million, one hundred fifty-two thousand, one hundred forty-four".