1265160030 has 64 divisors (see below), whose sum is σ = 3221544960. Its totient is φ = 317084544.

The previous prime is 1265160023. The next prime is 1265160031. The reversal of 1265160030 is 300615621.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265160031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63652 + ... + 81128.

It is an arithmetic number, because the mean of its divisors is an integer number (50336640).

Almost surely, 2^1265160030 is an apocalyptic number.

1265160030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1265160030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1610772480).

1265160030 is an abundant number, since it is smaller than the sum of its proper divisors (1956384930).

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

1265160030 is a wasteful number, since it uses less digits than its factorization.

1265160030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17633.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1265160030 is about 35569.0881243813. The cubic root of 1265160030 is about 1081.5546967582.

Adding to 1265160030 its reverse (300615621), we get a palindrome (1565775651).

The spelling of 1265160030 in words is "one billion, two hundred sixty-five million, one hundred sixty thousand, thirty".