1630115 has 4 divisors (see below), whose sum is σ = 1956144. Its totient is φ = 1304088.

The previous prime is 1630093. The next prime is 1630117. The reversal of 1630115 is 5110361.

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 1630115 - 2⁶ = 1630051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1630093 and 1630102.

It is not an unprimeable number, because it can be changed into a prime (1630117) 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, 163007 + ... + 163016.

It is an arithmetic number, because the mean of its divisors is an integer number (489036).

2^1630115 is an apocalyptic number.

1630115 is a deficient number, since it is larger than the sum of its proper divisors (326029).

1630115 is an equidigital number, since it uses as much as digits as its factorization.

1630115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326028.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1630115 is about 1276.7595701619. The cubic root of 1630115 is about 117.6899598196.

Adding to 1630115 its reverse (5110361), we get a palindrome (6740476).

The spelling of 1630115 in words is "one million, six hundred thirty thousand, one hundred fifteen".