146561332 has 6 divisors (see below), whose sum is σ = 256482338. Its totient is φ = 73280664.

The previous prime is 146561321. The next prime is 146561333. The reversal of 146561332 is 233165641.

It can be written as a sum of positive squares in only one way, i.e., 139570596 + 6990736 = 11814^2 + 2644^2 .

It is a super-2 number, since 2×146561332² = 42960448075228448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 146561294 and 146561303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146561333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18320163 + ... + 18320170.

Almost surely, 2^146561332 is an apocalyptic number.

It is an amenable number.

146561332 is a deficient number, since it is larger than the sum of its proper divisors (109921006).

146561332 is a wasteful number, since it uses less digits than its factorization.

146561332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36640337 (or 36640335 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 146561332 is about 12106.2517733607. The cubic root of 146561332 is about 527.2377133201.

The spelling of 146561332 in words is "one hundred forty-six million, five hundred sixty-one thousand, three hundred thirty-two".