3551142 has 16 divisors (see below), whose sum is σ = 8116992. Its totient is φ = 1014600.

The previous prime is 3551123. The next prime is 3551161. The reversal of 3551142 is 2411553.

It is an interprime number because it is at equal distance from previous prime (3551123) and next prime (3551161).

It is a super-2 number, since 2×3551142² = 25221219008328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 42234 + ... + 42317.

It is an arithmetic number, because the mean of its divisors is an integer number (507312).

Almost surely, 2^3551142 is an apocalyptic number.

3551142 is an abundant number, since it is smaller than the sum of its proper divisors (4565850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3551142 is a wasteful number, since it uses less digits than its factorization.

3551142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84563.

The product of its digits is 600, while the sum is 21.

The square root of 3551142 is about 1884.4473991067. The cubic root of 3551142 is about 152.5653862760.

Adding to 3551142 its reverse (2411553), we get a palindrome (5962695).

It can be divided in two parts, 35511 and 42, that added together give a palindrome (35553).

The spelling of 3551142 in words is "three million, five hundred fifty-one thousand, one hundred forty-two".