29156131 has 2 divisors, whose sum is σ = 29156132. Its totient is φ = 29156130.

The previous prime is 29156117. The next prime is 29156159. The reversal of 29156131 is 13165192.

It is an a-pointer prime, because the next prime (29156159) can be obtained adding 29156131 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29156131 - 2⁹ = 29155619 is a prime.

It is a super-2 number, since 2×29156131² = 1700159949778322, which contains 22 as substring.

It is equal to p_1808731 and since 29156131 and 1808731 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29156131.

It is not a weakly prime, because it can be changed into another prime (29156531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14578065 + 14578066.

It is an arithmetic number, because the mean of its divisors is an integer number (14578066).

Almost surely, 2^29156131 is an apocalyptic number.

29156131 is a deficient number, since it is larger than the sum of its proper divisors (1).

29156131 is an equidigital number, since it uses as much as digits as its factorization.

29156131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 28.

The square root of 29156131 is about 5399.6417473755. The cubic root of 29156131 is about 307.7820568430.

The spelling of 29156131 in words is "twenty-nine million, one hundred fifty-six thousand, one hundred thirty-one".