16081497 has 12 divisors (see below), whose sum is σ = 24089520. Its totient is φ = 10720836.

The previous prime is 16081489. The next prime is 16081501. The reversal of 16081497 is 79418061.

16081497 is a `hidden beast` number, since 1 + 608 + 1 + 49 + 7 = 666.

It is not a de Polignac number, because 16081497 - 2³ = 16081489 is a prime.

It is a super-2 number, since 2×16081497² = 517229091522018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16081487) 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 11 ways as a sum of consecutive naturals, for example, 32847 + ... + 33332.

It is an arithmetic number, because the mean of its divisors is an integer number (2007460).

Almost surely, 2^16081497 is an apocalyptic number.

It is an amenable number.

16081497 is a deficient number, since it is larger than the sum of its proper divisors (8008023).

16081497 is an frugal number, since it uses more digits than its factorization.

16081497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66194 (or 66182 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 16081497 is about 4010.1741857431. The cubic root of 16081497 is about 252.4113180713.

The spelling of 16081497 in words is "sixteen million, eighty-one thousand, four hundred ninety-seven".