29681453 has 2 divisors, whose sum is σ = 29681454. Its totient is φ = 29681452.

The previous prime is 29681419. The next prime is 29681467. The reversal of 29681453 is 35418692.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29181604 + 499849 = 5402^2 + 707^2 .

It is a cyclic number.

It is not a de Polignac number, because 29681453 - 2⁶ = 29681389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29686453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14840726 + 14840727.

It is an arithmetic number, because the mean of its divisors is an integer number (14840727).

Almost surely, 2^29681453 is an apocalyptic number.

It is an amenable number.

29681453 is a deficient number, since it is larger than the sum of its proper divisors (1).

29681453 is an equidigital number, since it uses as much as digits as its factorization.

29681453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 29681453 is about 5448.0687403887. The cubic root of 29681453 is about 309.6195575795.

The spelling of 29681453 in words is "twenty-nine million, six hundred eighty-one thousand, four hundred fifty-three".