146487561 has 12 divisors (see below), whose sum is σ = 214687536. Its totient is φ = 88780120.

The previous prime is 146487461. The next prime is 146487599. The reversal of 146487561 is 165784641.

It is not a de Polignac number, because 146487561 - 2⁷ = 146487433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146487361) 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 in 11 ways as a sum of consecutive naturals, for example, 201411 + ... + 202136.

It is an arithmetic number, because the mean of its divisors is an integer number (17890628).

Almost surely, 2^146487561 is an apocalyptic number.

146487561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

146487561 is a deficient number, since it is larger than the sum of its proper divisors (68199975).

146487561 is a wasteful number, since it uses less digits than its factorization.

146487561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403572 (or 403561 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 146487561 is about 12103.2045756486. The cubic root of 146487561 is about 527.1492375480.

The spelling of 146487561 in words is "one hundred forty-six million, four hundred eighty-seven thousand, five hundred sixty-one".