3581157 has 16 divisors (see below), whose sum is σ = 4935168. Its totient is φ = 2308800.

The previous prime is 3581153. The next prime is 3581167. The reversal of 3581157 is 7511853.

It is not a de Polignac number, because 3581157 - 2² = 3581153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3581153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15948 + ... + 16170.

It is an arithmetic number, because the mean of its divisors is an integer number (308448).

Almost surely, 2^3581157 is an apocalyptic number.

It is an amenable number.

3581157 is a deficient number, since it is larger than the sum of its proper divisors (1354011).

3581157 is a wasteful number, since it uses less digits than its factorization.

3581157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380.

The product of its digits is 4200, while the sum is 30.

The square root of 3581157 is about 1892.3945148938. The cubic root of 3581157 is about 152.9940191605.

It can be divided in two parts, 3 and 581157, that multiplied together give a palindrome (1743471).

The spelling of 3581157 in words is "three million, five hundred eighty-one thousand, one hundred fifty-seven".