29800157 has 6 divisors (see below), whose sum is σ = 31152702. Its totient is φ = 28503992.

The previous prime is 29800129. The next prime is 29800171. The reversal of 29800157 is 75100892.

It can be written as a sum of positive squares in only one way, i.e., 16760836 + 13039321 = 4094^2 + 3611^2 .

It is not a de Polignac number, because 29800157 - 2⁶ = 29800093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29800117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27638 + ... + 28695.

It is an arithmetic number, because the mean of its divisors is an integer number (5192117).

Almost surely, 2^29800157 is an apocalyptic number.

It is an amenable number.

29800157 is a deficient number, since it is larger than the sum of its proper divisors (1352545).

29800157 is an equidigital number, since it uses as much as digits as its factorization.

29800157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56379 (or 56356 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 29800157 is about 5458.9520056509. The cubic root of 29800157 is about 310.0317587997.

The spelling of 29800157 in words is "twenty-nine million, eight hundred thousand, one hundred fifty-seven".