16157929 has 2 divisors, whose sum is σ = 16157930. Its totient is φ = 16157928.

The previous prime is 16157927. The next prime is 16157941. The reversal of 16157929 is 92975161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13838400 + 2319529 = 3720^2 + 1523^2 .

It is a cyclic number.

It is not a de Polignac number, because 16157929 - 2¹ = 16157927 is a prime.

It is a super-2 number, since 2×16157929² = 522157339138082, which contains 22 as substring.

Together with 16157927, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 16157891 and 16157900.

It is not a weakly prime, because it can be changed into another prime (16157927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8078964 + 8078965.

It is an arithmetic number, because the mean of its divisors is an integer number (8078965).

Almost surely, 2^16157929 is an apocalyptic number.

It is an amenable number.

16157929 is a deficient number, since it is larger than the sum of its proper divisors (1).

16157929 is an equidigital number, since it uses as much as digits as its factorization.

16157929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 40.

The square root of 16157929 is about 4019.6926499423. The cubic root of 16157929 is about 252.8105723243.

The spelling of 16157929 in words is "sixteen million, one hundred fifty-seven thousand, nine hundred twenty-nine".