1012865454 has 48 divisors (see below), whose sum is σ = 2259599472. Its totient is φ = 327659904.

The previous prime is 1012865429. The next prime is 1012865489. The reversal of 1012865454 is 4545682101.

It is a happy number.

1012865454 is a `hidden beast` number, since 101 + 2 + 8 + 6 + 545 + 4 = 666.

It is a super-2 number, since 2×1012865454² = 2051792855813252232, which contains 22 as substring.

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, 293322 + ... + 296754.

It is an arithmetic number, because the mean of its divisors is an integer number (47074989).

Almost surely, 2^1012865454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012865454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1129799736).

1012865454 is an abundant number, since it is smaller than the sum of its proper divisors (1246734018).

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

1012865454 is a wasteful number, since it uses less digits than its factorization.

1012865454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921 (or 3918 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 1012865454 is about 31825.5471908968. The cubic root of 1012865454 is about 1004.2702238989.

The spelling of 1012865454 in words is "one billion, twelve million, eight hundred sixty-five thousand, four hundred fifty-four".