42650145 has 28 divisors (see below), whose sum is σ = 76741716. Its totient is φ = 22744800.

The previous prime is 42650143. The next prime is 42650147. The reversal of 42650145 is 54105624.

42650145 is a `hidden beast` number, since 4 + 2 + 650 + 1 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (42650143) and next prime (42650147).

It can be written as a sum of positive squares in 2 ways, for example, as 24681024 + 17969121 = 4968^2 + 4239^2 .

It is not a de Polignac number, because 42650145 - 2¹ = 42650143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42650143) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2206 + ... + 9495.

Almost surely, 2^42650145 is an apocalyptic number.

42650145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42650145 is a deficient number, since it is larger than the sum of its proper divisors (34091571).

42650145 is an equidigital number, since it uses as much as digits as its factorization.

42650145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11724 (or 11709 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 42650145 is about 6530.7078483117. The cubic root of 42650145 is about 349.3870769302.

Adding to 42650145 its reverse (54105624), we get a palindrome (96755769).

The spelling of 42650145 in words is "forty-two million, six hundred fifty thousand, one hundred forty-five".