145225079 has 4 divisors (see below), whose sum is σ = 147605880. Its totient is φ = 142844280.

The previous prime is 145225063. The next prime is 145225081. The reversal of 145225079 is 970522541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 970522541 = 5381 ⋅180361.

It is a cyclic number.

It is not a de Polignac number, because 145225079 - 2⁴ = 145225063 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 (145225099) 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, 1190309 + ... + 1190430.

It is an arithmetic number, because the mean of its divisors is an integer number (36901470).

Almost surely, 2^145225079 is an apocalyptic number.

145225079 is a deficient number, since it is larger than the sum of its proper divisors (2380801).

145225079 is an equidigital number, since it uses as much as digits as its factorization.

145225079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380800.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 145225079 is about 12050.9368515481. The cubic root of 145225079 is about 525.6304794317.

The spelling of 145225079 in words is "one hundred forty-five million, two hundred twenty-five thousand, seventy-nine".