4015261 has 4 divisors (see below), whose sum is σ = 4021024. Its totient is φ = 4009500.

The previous prime is 4015259. The next prime is 4015267. The reversal of 4015261 is 1625104.

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 4015261 - 2¹ = 4015259 is a prime.

It is a super-2 number, since 2×4015261² = 32244641796242, 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 (4015267) 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, 1665 + ... + 3286.

It is an arithmetic number, because the mean of its divisors is an integer number (1005256).

Almost surely, 2^4015261 is an apocalyptic number.

It is an amenable number.

4015261 is a deficient number, since it is larger than the sum of its proper divisors (5763).

4015261 is an equidigital number, since it uses as much as digits as its factorization.

4015261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5762.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 4015261 is about 2003.8116178923. The cubic root of 4015261 is about 158.9417267304.

The spelling of 4015261 in words is "four million, fifteen thousand, two hundred sixty-one".