1012539366 has 80 divisors (see below), whose sum is σ = 2337023040. Its totient is φ = 327525120.

The previous prime is 1012539343. The next prime is 1012539389. The reversal of 1012539366 is 6639352101.

It is an interprime number because it is at equal distance from previous prime (1012539343) and next prime (1012539389).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012539366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 780030 + ... + 781326.

It is an arithmetic number, because the mean of its divisors is an integer number (29212788).

Almost surely, 2^1012539366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012539366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1168511520).

1012539366 is an abundant number, since it is smaller than the sum of its proper divisors (1324483674).

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

1012539366 is a wasteful number, since it uses less digits than its factorization.

1012539366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451 (or 1442 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 1012539366 is about 31820.4237243944. The cubic root of 1012539366 is about 1004.1624387311.

The spelling of 1012539366 in words is "one billion, twelve million, five hundred thirty-nine thousand, three hundred sixty-six".