38863145 has 4 divisors (see below), whose sum is σ = 46635780. Its totient is φ = 31090512.

The previous prime is 38863133. The next prime is 38863157. The reversal of 38863145 is 54136883.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (38863133) and next prime (38863157).

It can be written as a sum of positive squares in 2 ways, for example, as 15784729 + 23078416 = 3973^2 + 4804^2 .

It is a cyclic number.

It is not a de Polignac number, because 38863145 - 2¹⁰ = 38862121 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38863099 and 38863108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3886310 + ... + 3886319.

It is an arithmetic number, because the mean of its divisors is an integer number (11658945).

Almost surely, 2^38863145 is an apocalyptic number.

It is an amenable number.

38863145 is a deficient number, since it is larger than the sum of its proper divisors (7772635).

38863145 is an equidigital number, since it uses as much as digits as its factorization.

38863145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7772634.

The product of its digits is 69120, while the sum is 38.

The square root of 38863145 is about 6234.0311997936. The cubic root of 38863145 is about 338.7240091168.

The spelling of 38863145 in words is "thirty-eight million, eight hundred sixty-three thousand, one hundred forty-five".