11215401 has 8 divisors (see below), whose sum is σ = 14971680. Its totient is φ = 7468032.

The previous prime is 11215381. The next prime is 11215411. The reversal of 11215401 is 10451211.

It is a happy number.

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

It is not a de Polignac number, because 11215401 - 2¹⁰ = 11214377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11215411) 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, 1705 + ... + 5033.

It is an arithmetic number, because the mean of its divisors is an integer number (1871460).

Almost surely, 2^11215401 is an apocalyptic number.

It is an amenable number.

11215401 is a deficient number, since it is larger than the sum of its proper divisors (3756279).

11215401 is a wasteful number, since it uses less digits than its factorization.

11215401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4455.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 11215401 is about 3348.9402801483. The cubic root of 11215401 is about 223.8402945908.

Adding to 11215401 its reverse (10451211), we get a palindrome (21666612).

The spelling of 11215401 in words is "eleven million, two hundred fifteen thousand, four hundred one".