264212136 has 24 divisors (see below), whose sum is σ = 715574730. Its totient is φ = 88070688.

The previous prime is 264212131. The next prime is 264212141. The reversal of 264212136 is 631212462.

264212136 is a `hidden beast` number, since 2 + 642 + 1 + 2 + 13 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (264212131) and next prime (264212141).

It can be written as a sum of positive squares in only one way, i.e., 263412900 + 799236 = 16230^2 + 894^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (264212131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1834735 + ... + 1834878.

Almost surely, 2^264212136 is an apocalyptic number.

It is an amenable number.

264212136 is an abundant number, since it is smaller than the sum of its proper divisors (451362594).

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

264212136 is a wasteful number, since it uses less digits than its factorization.

264212136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3669625 (or 3669618 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 264212136 is about 16254.6035325381. The cubic root of 264212136 is about 641.6786466383.

Adding to 264212136 its reverse (631212462), we get a palindrome (895424598).

The spelling of 264212136 in words is "two hundred sixty-four million, two hundred twelve thousand, one hundred thirty-six".