136212471 has 6 divisors (see below), whose sum is σ = 196751360. Its totient is φ = 90808308.

The previous prime is 136212467. The next prime is 136212473. The reversal of 136212471 is 174212631.

136212471 is a `hidden beast` number, since 13 + 621 + 24 + 7 + 1 = 666.

It is not a de Polignac number, because 136212471 - 2² = 136212467 is a prime.

It is a super-3 number, since 3×136212471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136212473) 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, 7567351 + ... + 7567368.

Almost surely, 2^136212471 is an apocalyptic number.

136212471 is a deficient number, since it is larger than the sum of its proper divisors (60538889).

136212471 is a wasteful number, since it uses less digits than its factorization.

136212471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15134725 (or 15134722 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 136212471 is about 11671.0098534788. The cubic root of 136212471 is about 514.5239840695.

The spelling of 136212471 in words is "one hundred thirty-six million, two hundred twelve thousand, four hundred seventy-one".