3551061 has 4 divisors (see below), whose sum is σ = 4734752. Its totient is φ = 2367372.

The previous prime is 3551057. The next prime is 3551077. The reversal of 3551061 is 1601553.

It is a happy number.

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 not a de Polignac number, because 3551061 - 2² = 3551057 is a prime.

It is a super-2 number, since 2×3551061² = 25220068451442, which contains 22 as substring.

It is a D-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 (3551161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591841 + ... + 591846.

It is an arithmetic number, because the mean of its divisors is an integer number (1183688).

Almost surely, 2^3551061 is an apocalyptic number.

It is an amenable number.

3551061 is a deficient number, since it is larger than the sum of its proper divisors (1183691).

3551061 is a wasteful number, since it uses less digits than its factorization.

3551061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183690.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 3551061 is about 1884.4259072726. The cubic root of 3551061 is about 152.5642262838.

The spelling of 3551061 in words is "three million, five hundred fifty-one thousand, sixty-one".