4012529 has 4 divisors (see below), whose sum is σ = 4019520. Its totient is φ = 4005540.

The previous prime is 4012507. The next prime is 4012537. The reversal of 4012529 is 9252104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4012529 - 2⁸ = 4012273 is a prime.

It is a super-2 number, since 2×4012529² = 32200777951682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4012549) 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, 2549 + ... + 3810.

It is an arithmetic number, because the mean of its divisors is an integer number (1004880).

Almost surely, 2^4012529 is an apocalyptic number.

It is an amenable number.

4012529 is a deficient number, since it is larger than the sum of its proper divisors (6991).

4012529 is an equidigital number, since it uses as much as digits as its factorization.

4012529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6990.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 4012529 is about 2003.1298010863. The cubic root of 4012529 is about 158.9056703513.

The spelling of 4012529 in words is "four million, twelve thousand, five hundred twenty-nine".