1215701 has 8 divisors (see below), whose sum is σ = 1251264. Its totient is φ = 1180800.

The previous prime is 1215679. The next prime is 1215703. The reversal of 1215701 is 1075121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1215701 - 2⁶ = 1215637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1215701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7976 + ... + 8126.

It is an arithmetic number, because the mean of its divisors is an integer number (156408).

2^1215701 is an apocalyptic number.

It is an amenable number.

1215701 is a deficient number, since it is larger than the sum of its proper divisors (35563).

1215701 is an equidigital number, since it uses as much as digits as its factorization.

1215701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331.

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 1215701 is about 1102.5883184580. The cubic root of 1215701 is about 106.7273168535.

The spelling of 1215701 in words is "one million, two hundred fifteen thousand, seven hundred one".