29148398281 has 2 divisors, whose sum is σ = 29148398282. Its totient is φ = 29148398280.

The previous prime is 29148398231. The next prime is 29148398317. The reversal of 29148398281 is 18289384192.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19240186681 + 9908211600 = 138709^2 + 99540^2 .

It is a cyclic number.

It is not a de Polignac number, because 29148398281 - 2¹⁷ = 29148267209 is a prime.

It is a super-2 number, since 2×29148398281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (29148398231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14574199140 + 14574199141.

It is an arithmetic number, because the mean of its divisors is an integer number (14574199141).

Almost surely, 2^29148398281 is an apocalyptic number.

It is an amenable number.

29148398281 is a deficient number, since it is larger than the sum of its proper divisors (1).

29148398281 is an equidigital number, since it uses as much as digits as its factorization.

29148398281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1990656, while the sum is 55.

The spelling of 29148398281 in words is "twenty-nine billion, one hundred forty-eight million, three hundred ninety-eight thousand, two hundred eighty-one".