1215041 has 4 divisors (see below), whose sum is σ = 1286532. Its totient is φ = 1143552.

The previous prime is 1215029. The next prime is 1215047. The reversal of 1215041 is 1405121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1405121 = 751 ⋅1871.

It can be written as a sum of positive squares in 2 ways, for example, as 1008016 + 207025 = 1004^2 + 455^2 .

It is a cyclic number.

It is not a de Polignac number, because 1215041 - 2⁶ = 1214977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1215047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35720 + ... + 35753.

It is an arithmetic number, because the mean of its divisors is an integer number (321633).

2^1215041 is an apocalyptic number.

It is an amenable number.

1215041 is a deficient number, since it is larger than the sum of its proper divisors (71491).

1215041 is an equidigital number, since it uses as much as digits as its factorization.

1215041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71490.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1215041 is about 1102.2889820732. The cubic root of 1215041 is about 106.7079993897.

It can be divided in two parts, 121 and 5041, that multiplied together give a square (609961 = 781²).

The spelling of 1215041 in words is "one million, two hundred fifteen thousand, forty-one".