1520105316 has 12 divisors (see below), whose sum is σ = 3546912432. Its totient is φ = 506701768.

The previous prime is 1520105311. The next prime is 1520105339. The reversal of 1520105316 is 6135010251.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1520105311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63337710 + ... + 63337733.

It is an arithmetic number, because the mean of its divisors is an integer number (295576036).

Almost surely, 2^1520105316 is an apocalyptic number.

It is an amenable number.

1520105316 is an abundant number, since it is smaller than the sum of its proper divisors (2026807116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1520105316 is a wasteful number, since it uses less digits than its factorization.

1520105316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126675450 (or 126675448 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1520105316 is about 38988.5280050427. The cubic root of 1520105316 is about 1149.8059700373.

Adding to 1520105316 its reverse (6135010251), we get a palindrome (7655115567).

The spelling of 1520105316 in words is "one billion, five hundred twenty million, one hundred five thousand, three hundred sixteen".