1520303973 has 8 divisors (see below), whose sum is σ = 2031691200. Its totient is φ = 1011226368.

The previous prime is 1520303969. The next prime is 1520303977. The reversal of 1520303973 is 3793030251.

It is an interprime number because it is at equal distance from previous prime (1520303969) and next prime (1520303977).

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

It is not a de Polignac number, because 1520303973 - 2² = 1520303969 is a prime.

It is a super-2 number, since 2×1520303973² = 4622648340639169458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520303977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575868 + ... + 578501.

It is an arithmetic number, because the mean of its divisors is an integer number (253961400).

Almost surely, 2^1520303973 is an apocalyptic number.

It is an amenable number.

1520303973 is a deficient number, since it is larger than the sum of its proper divisors (511387227).

1520303973 is a wasteful number, since it uses less digits than its factorization.

1520303973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154811.

The product of its (nonzero) digits is 17010, while the sum is 33.

The square root of 1520303973 is about 38991.0755558243. The cubic root of 1520303973 is about 1149.8560558335.

The spelling of 1520303973 in words is "one billion, five hundred twenty million, three hundred three thousand, nine hundred seventy-three".