34157212 has 12 divisors (see below), whose sum is σ = 62921320. Its totient is φ = 16179696.

The previous prime is 34157209. The next prime is 34157213. The reversal of 34157212 is 21275143.

It is a happy number.

It is a super-3 number, since 3×34157212³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34157213) 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, 224643 + ... + 224794.

Almost surely, 2^34157212 is an apocalyptic number.

It is an amenable number.

34157212 is a deficient number, since it is larger than the sum of its proper divisors (28764108).

34157212 is a wasteful number, since it uses less digits than its factorization.

34157212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449460 (or 449458 counting only the distinct ones).

The product of its digits is 1680, while the sum is 25.

The square root of 34157212 is about 5844.4171651243. The cubic root of 34157212 is about 324.4597319618.

The spelling of 34157212 in words is "thirty-four million, one hundred fifty-seven thousand, two hundred twelve".