145807039 has 4 divisors (see below), whose sum is σ = 166636624. Its totient is φ = 124977456.

The previous prime is 145807037. The next prime is 145807069. The reversal of 145807039 is 930708541.

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 145807039 - 2¹ = 145807037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145806989 and 145807007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145807031) 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, 10414782 + ... + 10414795.

It is an arithmetic number, because the mean of its divisors is an integer number (41659156).

Almost surely, 2^145807039 is an apocalyptic number.

145807039 is a deficient number, since it is larger than the sum of its proper divisors (20829585).

145807039 is an equidigital number, since it uses as much as digits as its factorization.

145807039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20829584.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 145807039 is about 12075.0585505827. The cubic root of 145807039 is about 526.3316627671.

The spelling of 145807039 in words is "one hundred forty-five million, eight hundred seven thousand, thirty-nine".