146552274 has 128 divisors (see below), whose sum is σ = 393154560. Its totient is φ = 39916800.

The previous prime is 146552243. The next prime is 146552303. The reversal of 146552274 is 472255641.

It is a happy number.

146552274 is a `hidden beast` number, since 1 + 4 + 65 + 522 + 74 = 666.

146552274 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 231939 + ... + 232569.

It is an arithmetic number, because the mean of its divisors is an integer number (3071520).

Almost surely, 2^146552274 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146552274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196577280).

146552274 is an abundant number, since it is smaller than the sum of its proper divisors (246602286).

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

146552274 is a wasteful number, since it uses less digits than its factorization.

146552274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 687 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 146552274 is about 12105.8776633501. The cubic root of 146552274 is about 527.2268513882.

The spelling of 146552274 in words is "one hundred forty-six million, five hundred fifty-two thousand, two hundred seventy-four".