136281464 has 16 divisors (see below), whose sum is σ = 278757720. Its totient is φ = 61946080.

The previous prime is 136281461. The next prime is 136281473. The reversal of 136281464 is 464182631.

It is a super-4 number, since 4×136281464⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136281461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 774239 + ... + 774414.

Almost surely, 2^136281464 is an apocalyptic number.

It is an amenable number.

136281464 is an abundant number, since it is smaller than the sum of its proper divisors (142476256).

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

136281464 is a wasteful number, since it uses less digits than its factorization.

136281464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548670 (or 1548666 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 136281464 is about 11673.9652218087. The cubic root of 136281464 is about 514.6108399479.

The spelling of 136281464 in words is "one hundred thirty-six million, two hundred eighty-one thousand, four hundred sixty-four".