1265084160 has 144 divisors (see below), whose sum is σ = 4096617504. Its totient is φ = 332660736.

The previous prime is 1265084147. The next prime is 1265084173. The reversal of 1265084160 is 614805621.

It is an interprime number because it is at equal distance from previous prime (1265084147) and next prime (1265084173).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278064 + ... + 282576.

Almost surely, 2^1265084160 is an apocalyptic number.

1265084160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1265084160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2048308752).

1265084160 is an abundant number, since it is smaller than the sum of its proper divisors (2831533344).

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

1265084160 is an equidigital number, since it uses as much as digits as its factorization.

1265084160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4610 (or 4596 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 1265084160 is about 35568.0215924361. The cubic root of 1265084160 is about 1081.5330765170.

Adding to 1265084160 its reverse (614805621), we get a palindrome (1879889781).

The spelling of 1265084160 in words is "one billion, two hundred sixty-five million, eighty-four thousand, one hundred sixty".