145672559 has 4 divisors (see below), whose sum is σ = 145730760. Its totient is φ = 145614360.

The previous prime is 145672543. The next prime is 145672561. The reversal of 145672559 is 955276541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 955276541 = 29423 ⋅32467.

It is a cyclic number.

It is not a de Polignac number, because 145672559 - 2⁴ = 145672543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145672159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25169 + ... + 30410.

It is an arithmetic number, because the mean of its divisors is an integer number (36432690).

Almost surely, 2^145672559 is an apocalyptic number.

145672559 is a deficient number, since it is larger than the sum of its proper divisors (58201).

145672559 is an equidigital number, since it uses as much as digits as its factorization.

145672559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58200.

The product of its digits is 378000, while the sum is 44.

The square root of 145672559 is about 12069.4887629924. The cubic root of 145672559 is about 526.1697984875.

The spelling of 145672559 in words is "one hundred forty-five million, six hundred seventy-two thousand, five hundred fifty-nine".