16277261 has 48 divisors (see below), whose sum is σ = 23442048. Its totient is φ = 11088000.

The previous prime is 16277251. The next prime is 16277267.

16277261 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 16277261 - 2⁶ = 16277197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16277267) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161111 + ... + 161211.

It is an arithmetic number, because the mean of its divisors is an integer number (488376).

Almost surely, 2^16277261 is an apocalyptic number.

16277261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16277261 is a deficient number, since it is larger than the sum of its proper divisors (7164787).

16277261 is a wasteful number, since it uses less digits than its factorization.

16277261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 155 counting only the distinct ones).

The product of its digits is 7056, while the sum is 32.

The square root of 16277261 is about 4034.5087681154. The cubic root of 16277261 is about 253.4314115085.

It can be divided in two parts, 1627 and 7261, that added together give a palindrome (8888).

The spelling of 16277261 in words is "sixteen million, two hundred seventy-seven thousand, two hundred sixty-one".