2120415 has 32 divisors (see below), whose sum is σ = 3773952. Its totient is φ = 1008000.

The previous prime is 2120411. The next prime is 2120423. The reversal of 2120415 is 5140212.

It is not a de Polignac number, because 2120415 - 2² = 2120411 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 2120394 and 2120403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11625 + ... + 11805.

It is an arithmetic number, because the mean of its divisors is an integer number (117936).

2^2120415 is an apocalyptic number.

2120415 is a deficient number, since it is larger than the sum of its proper divisors (1653537).

2120415 is a wasteful number, since it uses less digits than its factorization.

2120415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 2120415 is about 1456.1644824676. The cubic root of 2120415 is about 128.4715476479.

Adding to 2120415 its reverse (5140212), we get a palindrome (7260627).

The spelling of 2120415 in words is "two million, one hundred twenty thousand, four hundred fifteen".