1265061054 has 8 divisors (see below), whose sum is σ = 2530122120. Its totient is φ = 421687016.

The previous prime is 1265061047. The next prime is 1265061079. The reversal of 1265061054 is 4501605621.

It is a sphenic number, since it is the product of 3 distinct primes.

1265061054 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105421749 + ... + 105421760.

It is an arithmetic number, because the mean of its divisors is an integer number (316265265).

Almost surely, 2^1265061054 is an apocalyptic number.

1265061054 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1265061054 is a wasteful number, since it uses less digits than its factorization.

1265061054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210843514.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1265061054 is about 35567.6967767102. The cubic root of 1265061054 is about 1081.5264919602.

Adding to 1265061054 its reverse (4501605621), we get a palindrome (5766666675).

The spelling of 1265061054 in words is "one billion, two hundred sixty-five million, sixty-one thousand, fifty-four".