67145952 has 24 divisors (see below), whose sum is σ = 176258376. Its totient is φ = 22381952.

The previous prime is 67145951. The next prime is 67145957. The reversal of 67145952 is 25954176.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 67145952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67145951) 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, 349623 + ... + 349814.

It is an arithmetic number, because the mean of its divisors is an integer number (7344099).

Almost surely, 2^67145952 is an apocalyptic number.

It is an amenable number.

67145952 is an abundant number, since it is smaller than the sum of its proper divisors (109112424).

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

67145952 is a wasteful number, since it uses less digits than its factorization.

67145952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699450 (or 699442 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 67145952 is about 8194.2633592044. The cubic root of 67145952 is about 406.4495170821.

The spelling of 67145952 in words is "sixty-seven million, one hundred forty-five thousand, nine hundred fifty-two".