3506149 has 2 divisors, whose sum is σ = 3506150. Its totient is φ = 3506148.

The previous prime is 3506147. The next prime is 3506159. The reversal of 3506149 is 9416053.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3175524 + 330625 = 1782^2 + 575^2 .

It is an emirp because it is prime and its reverse (9416053) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3506149 - 2¹ = 3506147 is a prime.

Together with 3506147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3506141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1753074 + 1753075.

It is an arithmetic number, because the mean of its divisors is an integer number (1753075).

Almost surely, 2^3506149 is an apocalyptic number.

It is an amenable number.

3506149 is a deficient number, since it is larger than the sum of its proper divisors (1).

3506149 is an equidigital number, since it uses as much as digits as its factorization.

3506149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 3506149 is about 1872.4713615968. The cubic root of 3506149 is about 151.9183107918.

It can be divided in two parts, 3506 and 149, that added together give a triangular number (3655 = T₈₅).

The spelling of 3506149 in words is "three million, five hundred six thousand, one hundred forty-nine".