3506139 has 32 divisors (see below), whose sum is σ = 6397440. Its totient is φ = 1848096.

The previous prime is 3506137. The next prime is 3506141. The reversal of 3506139 is 9316053.

It is an interprime number because it is at equal distance from previous prime (3506137) and next prime (3506141).

It is not a de Polignac number, because 3506139 - 2¹ = 3506137 is a prime.

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

3506139 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3506137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1744 + ... + 3170.

It is an arithmetic number, because the mean of its divisors is an integer number (199920).

Almost surely, 2^3506139 is an apocalyptic number.

3506139 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

3506139 is a deficient number, since it is larger than the sum of its proper divisors (2891301).

3506139 is a wasteful number, since it uses less digits than its factorization.

3506139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456 (or 1450 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 3506139 is about 1872.4686913270. The cubic root of 3506139 is about 151.9181663613.

The spelling of 3506139 in words is "three million, five hundred six thousand, one hundred thirty-nine".