1401215 has 4 divisors (see below), whose sum is σ = 1681464. Its totient is φ = 1120968.

The previous prime is 1401203. The next prime is 1401217. The reversal of 1401215 is 5121041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1401215 - 2⁴ = 1401199 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 1401215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140117 + ... + 140126.

It is an arithmetic number, because the mean of its divisors is an integer number (420366).

2^1401215 is an apocalyptic number.

1401215 is a deficient number, since it is larger than the sum of its proper divisors (280249).

1401215 is an equidigital number, since it uses as much as digits as its factorization.

1401215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280248.

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

The square root of 1401215 is about 1183.7292764817. The cubic root of 1401215 is about 111.9012469237.

Adding to 1401215 its reverse (5121041), we get a palindrome (6522256).

The spelling of 1401215 in words is "one million, four hundred one thousand, two hundred fifteen".