3621151 has 4 divisors (see below), whose sum is σ = 3649792. Its totient is φ = 3592512.

The previous prime is 3621139. The next prime is 3621157. The reversal of 3621151 is 1511263.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3621151 - 2¹¹ = 3619103 is a prime.

It is a super-2 number, since 2×3621151² = 26225469129602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14130 + ... + 14383.

It is an arithmetic number, because the mean of its divisors is an integer number (912448).

Almost surely, 2^3621151 is an apocalyptic number.

3621151 is a deficient number, since it is larger than the sum of its proper divisors (28641).

3621151 is a wasteful number, since it uses less digits than its factorization.

3621151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28640.

The product of its digits is 180, while the sum is 19.

The square root of 3621151 is about 1902.9322110890. The cubic root of 3621151 is about 153.5614526163.

The spelling of 3621151 in words is "three million, six hundred twenty-one thousand, one hundred fifty-one".