1952020115 has 4 divisors (see below), whose sum is σ = 2342424144. Its totient is φ = 1561616088.

The previous prime is 1952020079. The next prime is 1952020139. The reversal of 1952020115 is 5110202591.

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 1952020115 - 2⁸ = 1952019859 is a prime.

It is a super-2 number, since 2×1952020115² = 7620765058729226450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195202007 + ... + 195202016.

It is an arithmetic number, because the mean of its divisors is an integer number (585606036).

Almost surely, 2^1952020115 is an apocalyptic number.

1952020115 is a deficient number, since it is larger than the sum of its proper divisors (390404029).

1952020115 is an equidigital number, since it uses as much as digits as its factorization.

1952020115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390404028.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 1952020115 is about 44181.6717089791. The cubic root of 1952020115 is about 1249.7642467391.

The spelling of 1952020115 in words is "one billion, nine hundred fifty-two million, twenty thousand, one hundred fifteen".