1065056540 has 24 divisors (see below), whose sum is σ = 2239922160. Its totient is φ = 425393408.

The previous prime is 1065056537. The next prime is 1065056543. The reversal of 1065056540 is 456505601.

It is an interprime number because it is at equal distance from previous prime (1065056537) and next prime (1065056543).

It is a super-2 number, since 2×1065056540² = 2268690866793543200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1065056497 and 1065056506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065056543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25325 + ... + 52644.

It is an arithmetic number, because the mean of its divisors is an integer number (93330090).

Almost surely, 2^1065056540 is an apocalyptic number.

1065056540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1065056540 is an abundant number, since it is smaller than the sum of its proper divisors (1174865620).

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

1065056540 is a wasteful number, since it uses less digits than its factorization.

1065056540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78661 (or 78659 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 1065056540 is about 32635.2039981367. The cubic root of 1065056540 is about 1021.2315446058.

The spelling of 1065056540 in words is "one billion, sixty-five million, fifty-six thousand, five hundred forty".