163051265 has 8 divisors (see below), whose sum is σ = 210712488. Its totient is φ = 120407040.

The previous prime is 163051243. The next prime is 163051271. The reversal of 163051265 is 562150361.

It can be written as a sum of positive squares in 4 ways, for example, as 5071504 + 157979761 = 2252^2 + 12569^2 .

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

It is not a de Polignac number, because 163051265 - 2¹⁴ = 163034881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1254176 + ... + 1254305.

It is an arithmetic number, because the mean of its divisors is an integer number (26339061).

Almost surely, 2^163051265 is an apocalyptic number.

It is an amenable number.

163051265 is a deficient number, since it is larger than the sum of its proper divisors (47661223).

163051265 is a wasteful number, since it uses less digits than its factorization.

163051265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508499.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 163051265 is about 12769.1528693175. The cubic root of 163051265 is about 546.3128185920.

The spelling of 163051265 in words is "one hundred sixty-three million, fifty-one thousand, two hundred sixty-five".