136445445 has 32 divisors (see below), whose sum is σ = 244995840. Its totient is φ = 72043200.

The previous prime is 136445431. The next prime is 136445447. The reversal of 136445445 is 544544631.

136445445 is a `hidden beast` number, since 1 + 3 + 644 + 5 + 4 + 4 + 5 = 666.

It is not a de Polignac number, because 136445445 - 2⁴ = 136445429 is a prime.

It is a super-2 number, since 2×136445445² = 37234718922496050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136445447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8632 + ... + 18638.

It is an arithmetic number, because the mean of its divisors is an integer number (7656120).

Almost surely, 2^136445445 is an apocalyptic number.

136445445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136445445 is a deficient number, since it is larger than the sum of its proper divisors (108550395).

136445445 is a wasteful number, since it uses less digits than its factorization.

136445445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10122 (or 10116 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 136445445 is about 11680.9864737530. The cubic root of 136445445 is about 514.8171594630.

The spelling of 136445445 in words is "one hundred thirty-six million, four hundred forty-five thousand, four hundred forty-five".