29257081 has 8 divisors (see below), whose sum is σ = 34890624. Its totient is φ = 23987040.

The previous prime is 29257069. The next prime is 29257133. The reversal of 29257081 is 18075292.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29257081 - 2¹¹ = 29255033 is a prime.

It is a super-2 number, since 2×29257081² = 1711953577281122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29257031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90700 + ... + 91021.

It is an arithmetic number, because the mean of its divisors is an integer number (4361328).

Almost surely, 2^29257081 is an apocalyptic number.

It is an amenable number.

29257081 is a deficient number, since it is larger than the sum of its proper divisors (5633543).

29257081 is a wasteful number, since it uses less digits than its factorization.

29257081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181751.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 29257081 is about 5408.9815122627. The cubic root of 29257081 is about 308.1368685281.

It can be divided in two parts, 292570 and 81, that multiplied together give a triangular number (23698170 = T₆₈₈₄).

The spelling of 29257081 in words is "twenty-nine million, two hundred fifty-seven thousand, eighty-one".