145609041 has 16 divisors (see below), whose sum is σ = 196485120. Its totient is φ = 95910480.

The previous prime is 145609031. The next prime is 145609069. The reversal of 145609041 is 140906541.

It is a happy number.

It is not a de Polignac number, because 145609041 - 2⁶ = 145608977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145609031) 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 15 ways as a sum of consecutive naturals, for example, 92620 + ... + 94178.

It is an arithmetic number, because the mean of its divisors is an integer number (12280320).

Almost surely, 2^145609041 is an apocalyptic number.

It is an amenable number.

145609041 is a deficient number, since it is larger than the sum of its proper divisors (50876079).

145609041 is a wasteful number, since it uses less digits than its factorization.

145609041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 145609041 is about 12066.8571301727. The cubic root of 145609041 is about 526.0933116226.

The spelling of 145609041 in words is "one hundred forty-five million, six hundred nine thousand, forty-one".