445678137 has 12 divisors (see below), whose sum is σ = 681625620. Its totient is φ = 279641088.

The previous prime is 445678133. The next prime is 445678141. The reversal of 445678137 is 731876544.

445678137 is a `hidden beast` number, since 4 + 4 + 567 + 81 + 3 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (445678133) and next prime (445678141).

It can be written as a sum of positive squares in 2 ways, for example, as 314140176 + 131537961 = 17724^2 + 11469^2 .

It is not a de Polignac number, because 445678137 - 2² = 445678133 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 445678092 and 445678101.

It is not an unprimeable number, because it can be changed into a prime (445678133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1456312 + ... + 1456617.

It is an arithmetic number, because the mean of its divisors is an integer number (56802135).

Almost surely, 2^445678137 is an apocalyptic number.

It is an amenable number.

445678137 is a deficient number, since it is larger than the sum of its proper divisors (235947483).

445678137 is a wasteful number, since it uses less digits than its factorization.

445678137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912952 (or 2912949 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 445678137 is about 21111.0903792296. The cubic root of 445678137 is about 763.8482887497.

The spelling of 445678137 in words is "four hundred forty-five million, six hundred seventy-eight thousand, one hundred thirty-seven".