29748131 has 16 divisors (see below), whose sum is σ = 36309504. Its totient is φ = 23817024.

The previous prime is 29748119. The next prime is 29748139. The reversal of 29748131 is 13184792.

It is not a de Polignac number, because 29748131 - 2¹⁸ = 29485987 is a prime.

It is a super-2 number, since 2×29748131² = 1769902595986322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29748091 and 29748100.

It is not an unprimeable number, because it can be changed into a prime (29748139) 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, 4775 + ... + 9071.

It is an arithmetic number, because the mean of its divisors is an integer number (2269344).

Almost surely, 2^29748131 is an apocalyptic number.

29748131 is a deficient number, since it is larger than the sum of its proper divisors (6561373).

29748131 is a wasteful number, since it uses less digits than its factorization.

29748131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4370.

The product of its digits is 12096, while the sum is 35.

The square root of 29748131 is about 5454.1847236778. The cubic root of 29748131 is about 309.8512328159.

The spelling of 29748131 in words is "twenty-nine million, seven hundred forty-eight thousand, one hundred thirty-one".