3661512 has 16 divisors (see below), whose sum is σ = 9153840. Its totient is φ = 1220496.

The previous prime is 3661507. The next prime is 3661517. The reversal of 3661512 is 2151663.

It is an interprime number because it is at equal distance from previous prime (3661507) and next prime (3661517).

It is a super-2 number, since 2×3661512² = 26813340252288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 152563 = 3661512 / (3 + 6 + 6 + 1 + 5 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (3661517) 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, 76258 + ... + 76305.

It is an arithmetic number, because the mean of its divisors is an integer number (572115).

Almost surely, 2^3661512 is an apocalyptic number.

It is an amenable number.

3661512 is an abundant number, since it is smaller than the sum of its proper divisors (5492328).

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

3661512 is a wasteful number, since it uses less digits than its factorization.

3661512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152572 (or 152568 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 3661512 is about 1913.5077736973. The cubic root of 3661512 is about 154.1298730148.

The spelling of 3661512 in words is "three million, six hundred sixty-one thousand, five hundred twelve".