145353023 has 4 divisors (see below), whose sum is σ = 145792488. Its totient is φ = 144913560.

The previous prime is 145353007. The next prime is 145353037. The reversal of 145353023 is 320353541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145353023 - 2⁴ = 145353007 is a prime.

It is a super-2 number, since 2×145353023² = 42255002590477058, 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 = 145352983 and 145353001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145353073) 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, 219236 + ... + 219897.

It is an arithmetic number, because the mean of its divisors is an integer number (36448122).

Almost surely, 2^145353023 is an apocalyptic number.

145353023 is a deficient number, since it is larger than the sum of its proper divisors (439465).

145353023 is an equidigital number, since it uses as much as digits as its factorization.

145353023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439464.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 145353023 is about 12056.2441498171. The cubic root of 145353023 is about 525.7847951248.

The spelling of 145353023 in words is "one hundred forty-five million, three hundred fifty-three thousand, twenty-three".