16211265 has 32 divisors (see below), whose sum is σ = 29842176. Its totient is φ = 7361280.

The previous prime is 16211263. The next prime is 16211267. The reversal of 16211265 is 56211261.

It is an interprime number because it is at equal distance from previous prime (16211263) and next prime (16211267).

It is not a de Polignac number, because 16211265 - 2¹ = 16211263 is a prime.

It is a super-2 number, since 2×16211265² = 525610225800450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16211263) 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, 18579 + ... + 19431.

It is an arithmetic number, because the mean of its divisors is an integer number (932568).

Almost surely, 2^16211265 is an apocalyptic number.

16211265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16211265 is a deficient number, since it is larger than the sum of its proper divisors (13630911).

16211265 is a wasteful number, since it uses less digits than its factorization.

16211265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049.

The product of its digits is 720, while the sum is 24.

The square root of 16211265 is about 4026.3215221837. The cubic root of 16211265 is about 253.0884358098.

The spelling of 16211265 in words is "sixteen million, two hundred eleven thousand, two hundred sixty-five".