16132730 has 16 divisors (see below), whose sum is σ = 29328264. Its totient is φ = 6388800.

The previous prime is 16132717. The next prime is 16132751. The reversal of 16132730 is 3723161.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16104169 + 28561 = 4013^2 + 169^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16132696 and 16132705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6977 + ... + 8996.

Almost surely, 2^16132730 is an apocalyptic number.

16132730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16132730 is a deficient number, since it is larger than the sum of its proper divisors (13195534).

16132730 is a wasteful number, since it uses less digits than its factorization.

16132730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16081.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 16132730 is about 4016.5569832880. The cubic root of 16132730 is about 252.6790808810.

Adding to 16132730 its reverse (3723161), we get a palindrome (19855891).

The spelling of 16132730 in words is "sixteen million, one hundred thirty-two thousand, seven hundred thirty".