145302023 has 8 divisors (see below), whose sum is σ = 148458240. Its totient is φ = 142179840.

The previous prime is 145302013. The next prime is 145302083. The reversal of 145302023 is 320203541.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145302023 is a prime.

It is a super-2 number, since 2×145302023² = 42225355775785058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145301986 and 145302004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145302013) 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, 218 + ... + 17048.

It is an arithmetic number, because the mean of its divisors is an integer number (18557280).

Almost surely, 2^145302023 is an apocalyptic number.

145302023 is a deficient number, since it is larger than the sum of its proper divisors (3156217).

145302023 is an equidigital number, since it uses as much as digits as its factorization.

145302023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17017.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 145302023 is about 12054.1288776917. The cubic root of 145302023 is about 525.7232939125.

Adding to 145302023 its reverse (320203541), we get a palindrome (465505564).

The spelling of 145302023 in words is "one hundred forty-five million, three hundred two thousand, twenty-three".