146507831 has 2 divisors, whose sum is σ = 146507832. Its totient is φ = 146507830.

The previous prime is 146507821. The next prime is 146507833. The reversal of 146507831 is 138705641.

146507831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (138705641) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146507831 is a prime.

It is a super-2 number, since 2×146507831² = 42929089088649122, which contains 22 as substring.

Together with 146507833, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 146507791 and 146507800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146507833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73253915 + 73253916.

It is an arithmetic number, because the mean of its divisors is an integer number (73253916).

Almost surely, 2^146507831 is an apocalyptic number.

146507831 is a deficient number, since it is larger than the sum of its proper divisors (1).

146507831 is an equidigital number, since it uses as much as digits as its factorization.

146507831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 146507831 is about 12104.0419282155. The cubic root of 146507831 is about 527.1735509258.

The spelling of 146507831 in words is "one hundred forty-six million, five hundred seven thousand, eight hundred thirty-one".