145907023 has 4 divisors (see below), whose sum is σ = 153586360. Its totient is φ = 138227688.

The previous prime is 145907011. The next prime is 145907029. The reversal of 145907023 is 320709541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320709541 = 331 ⋅968911.

It is a cyclic number.

It is not a de Polignac number, because 145907023 - 2⁵ = 145906991 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 (145907029) 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, 3839640 + ... + 3839677.

It is an arithmetic number, because the mean of its divisors is an integer number (38396590).

Almost surely, 2^145907023 is an apocalyptic number.

145907023 is a deficient number, since it is larger than the sum of its proper divisors (7679337).

145907023 is an equidigital number, since it uses as much as digits as its factorization.

145907023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7679336.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 145907023 is about 12079.1979452280. The cubic root of 145907023 is about 526.4519421014.

The spelling of 145907023 in words is "one hundred forty-five million, nine hundred seven thousand, twenty-three".