189480145 has 16 divisors (see below), whose sum is σ = 238962240. Its totient is φ = 144051264.

The previous prime is 189480143. The next prime is 189480149. The reversal of 189480145 is 541084981.

It is a cyclic number.

It is not a de Polignac number, because 189480145 - 2¹ = 189480143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 189480098 and 189480107.

It is not an unprimeable number, because it can be changed into a prime (189480143) 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, 3955 + ... + 19864.

It is an arithmetic number, because the mean of its divisors is an integer number (14935140).

Almost surely, 2^189480145 is an apocalyptic number.

It is an amenable number.

189480145 is a deficient number, since it is larger than the sum of its proper divisors (49482095).

189480145 is a wasteful number, since it uses less digits than its factorization.

189480145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23904.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 189480145 is about 13765.1787129699. The cubic root of 189480145 is about 574.3649144354.

The spelling of 189480145 in words is "one hundred eighty-nine million, four hundred eighty thousand, one hundred forty-five".