16313505 has 32 divisors (see below), whose sum is σ = 28304640. Its totient is φ = 7975680.

The previous prime is 16313503. The next prime is 16313519. The reversal of 16313505 is 50531361.

16313505 = T₂₀₅ + T₂₀₆ + ... + T₄₇₃.

It is not a de Polignac number, because 16313505 - 2¹ = 16313503 is a prime.

It is a super-2 number, since 2×16313505² = 532260890770050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16313503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52300 + ... + 52610.

It is an arithmetic number, because the mean of its divisors is an integer number (884520).

Almost surely, 2^16313505 is an apocalyptic number.

16313505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16313505 is a deficient number, since it is larger than the sum of its proper divisors (11991135).

16313505 is a wasteful number, since it uses less digits than its factorization.

16313505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 16313505 is about 4038.9980193112. The cubic root of 16313505 is about 253.6193743139.

Adding to 16313505 its reverse (50531361), we get a palindrome (66844866).

The spelling of 16313505 in words is "sixteen million, three hundred thirteen thousand, five hundred five".