146989732 has 6 divisors (see below), whose sum is σ = 257232038. Its totient is φ = 73494864.

The previous prime is 146989721. The next prime is 146989741. The reversal of 146989732 is 237989641.

It can be written as a sum of positive squares in only one way, i.e., 121749156 + 25240576 = 11034^2 + 5024^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18373713 + ... + 18373720.

Almost surely, 2^146989732 is an apocalyptic number.

It is an amenable number.

146989732 is a deficient number, since it is larger than the sum of its proper divisors (110242306).

146989732 is a wasteful number, since it uses less digits than its factorization.

146989732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36747437 (or 36747435 counting only the distinct ones).

The product of its digits is 653184, while the sum is 49.

The square root of 146989732 is about 12123.9322004043. The cubic root of 146989732 is about 527.7509203577.

Subtracting 146989732 from its reverse (237989641), we obtain a palindrome (90999909).

The spelling of 146989732 in words is "one hundred forty-six million, nine hundred eighty-nine thousand, seven hundred thirty-two".