29139007 has 6 divisors (see below), whose sum is σ = 29429888. Its totient is φ = 28849212.

The previous prime is 29138983. The next prime is 29139031. The reversal of 29139007 is 70093192.

It is an interprime number because it is at equal distance from previous prime (29138983) and next prime (29139031).

It is not a de Polignac number, because 29139007 - 2¹¹ = 29136959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29139007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29139067) 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, 60594 + ... + 61072.

Almost surely, 2^29139007 is an apocalyptic number.

29139007 is a deficient number, since it is larger than the sum of its proper divisors (290881).

29139007 is an frugal number, since it uses more digits than its factorization.

29139007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 29139007 is about 5398.0558537310. The cubic root of 29139007 is about 307.7217894491.

The spelling of 29139007 in words is "twenty-nine million, one hundred thirty-nine thousand, seven".