145607609 has 8 divisors (see below), whose sum is σ = 167469888. Its totient is φ = 124010640.

The previous prime is 145607603. The next prime is 145607653. The reversal of 145607609 is 906706541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145607609 - 2⁴ = 145607593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145607603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65147 + ... + 67344.

It is an arithmetic number, because the mean of its divisors is an integer number (20933736).

Almost surely, 2^145607609 is an apocalyptic number.

It is an amenable number.

145607609 is a deficient number, since it is larger than the sum of its proper divisors (21862279).

145607609 is a wasteful number, since it uses less digits than its factorization.

145607609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132655.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 145607609 is about 12066.7977939468. The cubic root of 145607609 is about 526.0915869858.

The spelling of 145607609 in words is "one hundred forty-five million, six hundred seven thousand, six hundred nine".