1260015 has 16 divisors (see below), whose sum is σ = 2032128. Its totient is φ = 666656.

The previous prime is 1260011. The next prime is 1260019. The reversal of 1260015 is 5100621.

It is an interprime number because it is at equal distance from previous prime (1260011) and next prime (1260019).

It is a cyclic number.

It is not a de Polignac number, because 1260015 - 2² = 1260011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1259976 and 1260003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260011) 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, 2254 + ... + 2756.

It is an arithmetic number, because the mean of its divisors is an integer number (127008).

2^1260015 is an apocalyptic number.

1260015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1260015 is a deficient number, since it is larger than the sum of its proper divisors (772113).

1260015 is a wasteful number, since it uses less digits than its factorization.

1260015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1260015 is about 1122.5038975433. The cubic root of 1260015 is about 108.0086584279.

Adding to 1260015 its reverse (5100621), we get a palindrome (6360636).

Subtracting 1260015 from its reverse (5100621), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 1260015 in words is "one million, two hundred sixty thousand, fifteen".