3551138 has 16 divisors (see below), whose sum is σ = 5663520. Its totient is φ = 1665216.

The previous prime is 3551123. The next prime is 3551161. The reversal of 3551138 is 8311553.

It is a super-2 number, since 2×3551138² = 25221162190088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3881 + ... + 4707.

It is an arithmetic number, because the mean of its divisors is an integer number (353970).

Almost surely, 2^3551138 is an apocalyptic number.

3551138 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3551138 is a deficient number, since it is larger than the sum of its proper divisors (2112382).

3551138 is a wasteful number, since it uses less digits than its factorization.

3551138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961.

The product of its digits is 1800, while the sum is 26.

The square root of 3551138 is about 1884.4463377873. The cubic root of 3551138 is about 152.5653289928.

The spelling of 3551138 in words is "three million, five hundred fifty-one thousand, one hundred thirty-eight".