29153985 has 16 divisors (see below), whose sum is σ = 53310336. Its totient is φ = 13327488.

The previous prime is 29153983. The next prime is 29153987. The reversal of 29153985 is 58935192.

It is an interprime number because it is at equal distance from previous prime (29153983) and next prime (29153987).

It is not a de Polignac number, because 29153985 - 2¹ = 29153983 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29153983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138724 + ... + 138933.

It is an arithmetic number, because the mean of its divisors is an integer number (3331896).

Almost surely, 2^29153985 is an apocalyptic number.

It is an amenable number.

29153985 is a deficient number, since it is larger than the sum of its proper divisors (24156351).

29153985 is a wasteful number, since it uses less digits than its factorization.

29153985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277672.

The product of its digits is 97200, while the sum is 42.

The square root of 29153985 is about 5399.4430268316. The cubic root of 29153985 is about 307.7745053553.

The spelling of 29153985 in words is "twenty-nine million, one hundred fifty-three thousand, nine hundred eighty-five".