146403561 has 16 divisors (see below), whose sum is σ = 201172608. Its totient is φ = 94636800.

The previous prime is 146403553. The next prime is 146403577. The reversal of 146403561 is 165304641.

It is not a de Polignac number, because 146403561 - 2³ = 146403553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146403581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32401 + ... + 36641.

It is an arithmetic number, because the mean of its divisors is an integer number (12573288).

Almost surely, 2^146403561 is an apocalyptic number.

It is an amenable number.

146403561 is a deficient number, since it is larger than the sum of its proper divisors (54769047).

146403561 is a wasteful number, since it uses less digits than its factorization.

146403561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4592.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 146403561 is about 12099.7339226943. The cubic root of 146403561 is about 527.0484576541.

The spelling of 146403561 in words is "one hundred forty-six million, four hundred three thousand, five hundred sixty-one".