1520422093 has 8 divisors (see below), whose sum is σ = 1562011128. Its totient is φ = 1478859264.

The previous prime is 1520422073. The next prime is 1520422097. The reversal of 1520422093 is 3902240251.

It can be written as a sum of positive squares in 4 ways, for example, as 977625289 + 542796804 = 31267^2 + 23298^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1520422093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520422097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191205 + ... + 198997.

It is an arithmetic number, because the mean of its divisors is an integer number (195251391).

Almost surely, 2^1520422093 is an apocalyptic number.

It is an amenable number.

1520422093 is a deficient number, since it is larger than the sum of its proper divisors (41589035).

1520422093 is an equidigital number, since it uses as much as digits as its factorization.

1520422093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13103.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1520422093 is about 38992.5902319915. The cubic root of 1520422093 is about 1149.8858344133.

The spelling of 1520422093 in words is "one billion, five hundred twenty million, four hundred twenty-two thousand, ninety-three".