1521316351 has 16 divisors (see below), whose sum is σ = 1624227840. Its totient is φ = 1422570240.

The previous prime is 1521316343. The next prime is 1521316369. The reversal of 1521316351 is 1536131251.

It is a cyclic number.

It is not a de Polignac number, because 1521316351 - 2³ = 1521316343 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 (1521316331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108495 + ... + 121711.

It is an arithmetic number, because the mean of its divisors is an integer number (101514240).

Almost surely, 2^1521316351 is an apocalyptic number.

1521316351 is a deficient number, since it is larger than the sum of its proper divisors (102911489).

1521316351 is a wasteful number, since it uses less digits than its factorization.

1521316351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13374.

The product of its digits is 2700, while the sum is 28.

The square root of 1521316351 is about 39004.0555711839. The cubic root of 1521316351 is about 1150.1112308290. Note that the first 3 decimals are identical.

The spelling of 1521316351 in words is "one billion, five hundred twenty-one million, three hundred sixteen thousand, three hundred fifty-one".