16380157 has 6 divisors (see below), whose sum is σ = 16965338. Its totient is φ = 15814512.

The previous prime is 16380149. The next prime is 16380167. The reversal of 16380157 is 75108361.

It can be written as a sum of positive squares in 3 ways, for example, as 4137156 + 12243001 = 2034^2 + 3499^2 .

It is not a de Polignac number, because 16380157 - 2³ = 16380149 is a prime.

It is a super-3 number, since 3×16380157³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16380107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8898 + ... + 10579.

Almost surely, 2^16380157 is an apocalyptic number.

It is an amenable number.

16380157 is a deficient number, since it is larger than the sum of its proper divisors (585181).

16380157 is an equidigital number, since it uses as much as digits as its factorization.

16380157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19535 (or 19506 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 16380157 is about 4047.2406649469. The cubic root of 16380157 is about 253.9643087470.

The spelling of 16380157 in words is "sixteen million, three hundred eighty thousand, one hundred fifty-seven".