136021471 has 16 divisors (see below), whose sum is σ = 150882048. Its totient is φ = 121968000.

The previous prime is 136021469. The next prime is 136021493. The reversal of 136021471 is 174120631.

It is a cyclic number.

It is not a de Polignac number, because 136021471 - 2¹ = 136021469 is a prime.

It is a super-3 number, since 3×136021471³ (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 (136021271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128896 + ... + 129946.

It is an arithmetic number, because the mean of its divisors is an integer number (9430128).

Almost surely, 2^136021471 is an apocalyptic number.

136021471 is a deficient number, since it is larger than the sum of its proper divisors (14860577).

136021471 is a wasteful number, since it uses less digits than its factorization.

136021471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 136021471 is about 11662.8243148905. The cubic root of 136021471 is about 514.2833794463.

The spelling of 136021471 in words is "one hundred thirty-six million, twenty-one thousand, four hundred seventy-one".