29135135237 has 4 divisors (see below), whose sum is σ = 31376299500. Its totient is φ = 26893970976.

The previous prime is 29135135203. The next prime is 29135135269. The reversal of 29135135237 is 73253153192.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6374585281 + 22760549956 = 79841^2 + 150866^2 .

It is a cyclic number.

It is not a de Polignac number, because 29135135237 - 2¹⁴ = 29135118853 is a prime.

It is a super-2 number, since 2×29135135237² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29135135194 and 29135135203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29135135297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1120582112 + ... + 1120582137.

It is an arithmetic number, because the mean of its divisors is an integer number (7844074875).

Almost surely, 2^29135135237 is an apocalyptic number.

It is an amenable number.

29135135237 is a deficient number, since it is larger than the sum of its proper divisors (2241164263).

29135135237 is a wasteful number, since it uses less digits than its factorization.

29135135237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241164262.

The product of its digits is 170100, while the sum is 41.

The spelling of 29135135237 in words is "twenty-nine billion, one hundred thirty-five million, one hundred thirty-five thousand, two hundred thirty-seven".