39150661 has 4 divisors (see below), whose sum is σ = 42709824. Its totient is φ = 35591500.

The previous prime is 39150653. The next prime is 39150673. The reversal of 39150661 is 16605193.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39150661 - 2³ = 39150653 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39150611) 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 3 ways as a sum of consecutive naturals, for example, 1779565 + ... + 1779586.

It is an arithmetic number, because the mean of its divisors is an integer number (10677456).

Almost surely, 2^39150661 is an apocalyptic number.

It is an amenable number.

39150661 is a deficient number, since it is larger than the sum of its proper divisors (3559163).

39150661 is a wasteful number, since it uses less digits than its factorization.

39150661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559162.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 39150661 is about 6257.0489050350. The cubic root of 39150661 is about 339.5572697708.

The spelling of 39150661 in words is "thirty-nine million, one hundred fifty thousand, six hundred sixty-one".