146431522 has 12 divisors (see below), whose sum is σ = 222360390. Its totient is φ = 72313296.

The previous prime is 146431513. The next prime is 146431543. The reversal of 146431522 is 225134641.

It can be written as a sum of positive squares in only one way, i.e., 139027681 + 7403841 = 11791^2 + 2721^2 .

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 160993 + ... + 161899.

Almost surely, 2^146431522 is an apocalyptic number.

146431522 is a deficient number, since it is larger than the sum of its proper divisors (75928868).

146431522 is an frugal number, since it uses more digits than its factorization.

146431522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905 (or 998 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 146431522 is about 12100.8893061626. The cubic root of 146431522 is about 527.0820084406.

The spelling of 146431522 in words is "one hundred forty-six million, four hundred thirty-one thousand, five hundred twenty-two".