145795831 has 2 divisors, whose sum is σ = 145795832. Its totient is φ = 145795830.

The previous prime is 145795829. The next prime is 145795841. The reversal of 145795831 is 138597541.

It is a weak prime.

It is an emirp because it is prime and its reverse (138597541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145795831 - 2¹ = 145795829 is a prime.

It is a super-2 number, since 2×145795831² = 42512848673961122, which contains 22 as substring.

Together with 145795829, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145795801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72897915 + 72897916.

It is an arithmetic number, because the mean of its divisors is an integer number (72897916).

Almost surely, 2^145795831 is an apocalyptic number.

145795831 is a deficient number, since it is larger than the sum of its proper divisors (1).

145795831 is an equidigital number, since it uses as much as digits as its factorization.

145795831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 43.

The square root of 145795831 is about 12074.5944445352. The cubic root of 145795831 is about 526.3181762750.

The spelling of 145795831 in words is "one hundred forty-five million, seven hundred ninety-five thousand, eight hundred thirty-one".