145597089 has 8 divisors (see below), whose sum is σ = 211777632. Its totient is φ = 88240640.

The previous prime is 145597087. The next prime is 145597093. The reversal of 145597089 is 980795541.

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 145597089 - 2¹ = 145597087 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145597087) 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, 2205984 + ... + 2206049.

It is an arithmetic number, because the mean of its divisors is an integer number (26472204).

Almost surely, 2^145597089 is an apocalyptic number.

It is an amenable number.

145597089 is a deficient number, since it is larger than the sum of its proper divisors (66180543).

145597089 is a wasteful number, since it uses less digits than its factorization.

145597089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4412047.

The product of its (nonzero) digits is 453600, while the sum is 48.

The square root of 145597089 is about 12066.3618792078. The cubic root of 145597089 is about 526.0789168220.

The spelling of 145597089 in words is "one hundred forty-five million, five hundred ninety-seven thousand, eighty-nine".