29160981 has 12 divisors (see below), whose sum is σ = 42213600. Its totient is φ = 19398120.

The previous prime is 29160973. The next prime is 29160983. The reversal of 29160981 is 18906192.

It is not a de Polignac number, because 29160981 - 2³ = 29160973 is a prime.

It is a super-2 number, since 2×29160981² = 1700725625764722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29160983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1120 + ... + 7718.

It is an arithmetic number, because the mean of its divisors is an integer number (3517800).

Almost surely, 2^29160981 is an apocalyptic number.

It is an amenable number.

29160981 is a deficient number, since it is larger than the sum of its proper divisors (13052619).

29160981 is a wasteful number, since it uses less digits than its factorization.

29160981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7096 (or 7093 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 29160981 is about 5400.0908325694. The cubic root of 29160981 is about 307.7991219812.

The spelling of 29160981 in words is "twenty-nine million, one hundred sixty thousand, nine hundred eighty-one".