1955515 has 4 divisors (see below), whose sum is σ = 2346624. Its totient is φ = 1564408.

The previous prime is 1955509. The next prime is 1955521. The reversal of 1955515 is 5155591.

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

It is an interprime number because it is at equal distance from previous prime (1955509) and next prime (1955521).

It is a cyclic number.

It is not a de Polignac number, because 1955515 - 2³ = 1955507 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195547 + ... + 195556.

It is an arithmetic number, because the mean of its divisors is an integer number (586656).

2^1955515 is an apocalyptic number.

1955515 is a deficient number, since it is larger than the sum of its proper divisors (391109).

1955515 is an equidigital number, since it uses as much as digits as its factorization.

1955515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391108.

The product of its digits is 5625, while the sum is 31.

The square root of 1955515 is about 1398.3972969081. The cubic root of 1955515 is about 125.0509658837.

The spelling of 1955515 in words is "one million, nine hundred fifty-five thousand, five hundred fifteen".