1265153201 has 8 divisors (see below), whose sum is σ = 1367904384. Its totient is φ = 1163178000.

The previous prime is 1265153167. The next prime is 1265153233. The reversal of 1265153201 is 1023515621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1265153201 is a prime.

It is a super-2 number, since 2×1265153201² = 3201225244001092802, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1265153261) 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, 190601 + ... + 197126.

It is an arithmetic number, because the mean of its divisors is an integer number (170988048).

Almost surely, 2^1265153201 is an apocalyptic number.

It is an amenable number.

1265153201 is a deficient number, since it is larger than the sum of its proper divisors (102751183).

1265153201 is a wasteful number, since it uses less digits than its factorization.

1265153201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387991.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1265153201 is about 35568.9921279757. The cubic root of 1265153201 is about 1081.5527507725.

Adding to 1265153201 its reverse (1023515621), we get a palindrome (2288668822).

The spelling of 1265153201 in words is "one billion, two hundred sixty-five million, one hundred fifty-three thousand, two hundred one".