67121652 has 24 divisors (see below), whose sum is σ = 168665056. Its totient is φ = 20652768.

The previous prime is 67121651. The next prime is 67121653. The reversal of 67121652 is 25612176.

It is an interprime number because it is at equal distance from previous prime (67121651) and next prime (67121653).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67121651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214978 + ... + 215289.

Almost surely, 2^67121652 is an apocalyptic number.

It is an amenable number.

67121652 is an abundant number, since it is smaller than the sum of its proper divisors (101543404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67121652 is a wasteful number, since it uses less digits than its factorization.

67121652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430287 (or 430285 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 67121652 is about 8192.7804803986. The cubic root of 67121652 is about 406.4004800483.

The spelling of 67121652 in words is "sixty-seven million, one hundred twenty-one thousand, six hundred fifty-two".