29145213 has 6 divisors (see below), whose sum is σ = 42098654. Its totient is φ = 19430136.

The previous prime is 29145199. The next prime is 29145227. The reversal of 29145213 is 31254192.

It is an interprime number because it is at equal distance from previous prime (29145199) and next prime (29145227).

It can be written as a sum of positive squares in only one way, i.e., 21511044 + 7634169 = 4638^2 + 2763^2 .

It is not a de Polignac number, because 29145213 - 2⁴ = 29145197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29145253) 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, 1619170 + ... + 1619187.

Almost surely, 2^29145213 is an apocalyptic number.

It is an amenable number.

29145213 is a deficient number, since it is larger than the sum of its proper divisors (12953441).

29145213 is a wasteful number, since it uses less digits than its factorization.

29145213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3238363 (or 3238360 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 29145213 is about 5398.6306597136. The cubic root of 29145213 is about 307.7436340035.

The spelling of 29145213 in words is "twenty-nine million, one hundred forty-five thousand, two hundred thirteen".