39146145 has 16 divisors (see below), whose sum is σ = 62741952. Its totient is φ = 20841920.

The previous prime is 39146141. The next prime is 39146147. The reversal of 39146145 is 54164193.

It is not a de Polignac number, because 39146145 - 2² = 39146141 is a prime.

It is a super-2 number, since 2×39146145² = 3064841336722050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39146141) 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 15 ways as a sum of consecutive naturals, for example, 8335 + ... + 12155.

It is an arithmetic number, because the mean of its divisors is an integer number (3921372).

Almost surely, 2^39146145 is an apocalyptic number.

It is an amenable number.

39146145 is a deficient number, since it is larger than the sum of its proper divisors (23595807).

39146145 is a wasteful number, since it uses less digits than its factorization.

39146145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4512.

The product of its digits is 12960, while the sum is 33.

The square root of 39146145 is about 6256.6880216293. The cubic root of 39146145 is about 339.5442133749.

The spelling of 39146145 in words is "thirty-nine million, one hundred forty-six thousand, one hundred forty-five".