1520465051 has 6 divisors (see below), whose sum is σ = 1768704300. Its totient is φ = 1303255716.

The previous prime is 1520465021. The next prime is 1520465069. The reversal of 1520465051 is 1505640251.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1520465051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1520465021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15514901 + ... + 15514998.

It is an arithmetic number, because the mean of its divisors is an integer number (294784050).

Almost surely, 2^1520465051 is an apocalyptic number.

1520465051 is a deficient number, since it is larger than the sum of its proper divisors (248239249).

1520465051 is an equidigital number, since it uses as much as digits as its factorization.

1520465051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31029913 (or 31029906 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 1520465051 is about 38993.1410763483. The cubic root of 1520465051 is about 1149.8966639347.

The spelling of 1520465051 in words is "one billion, five hundred twenty million, four hundred sixty-five thousand, fifty-one".