39016081 has 4 divisors (see below), whose sum is σ = 42017332. Its totient is φ = 36014832.

The previous prime is 39016069. The next prime is 39016099. The reversal of 39016081 is 18061093.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2835856 + 36180225 = 1684^2 + 6015^2 .

It is a cyclic number.

It is not a de Polignac number, because 39016081 - 2⁷ = 39015953 is a prime.

It is a super-2 number, since 2×39016081² = 3044509153197122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39016381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1500606 + ... + 1500631.

It is an arithmetic number, because the mean of its divisors is an integer number (10504333).

Almost surely, 2^39016081 is an apocalyptic number.

It is an amenable number.

39016081 is a deficient number, since it is larger than the sum of its proper divisors (3001251).

39016081 is a wasteful number, since it uses less digits than its factorization.

39016081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001250.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 39016081 is about 6246.2853761256. The cubic root of 39016081 is about 339.1677482138.

It can be divided in two parts, 390 and 16081, that added together give a triangular number (16471 = T₁₈₁).

The spelling of 39016081 in words is "thirty-nine million, sixteen thousand, eighty-one".