145903847 has 2 divisors, whose sum is σ = 145903848. Its totient is φ = 145903846.

The previous prime is 145903819. The next prime is 145903853. The reversal of 145903847 is 748309541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145903847 - 2⁸ = 145903591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145903817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72951923 + 72951924.

It is an arithmetic number, because the mean of its divisors is an integer number (72951924).

Almost surely, 2^145903847 is an apocalyptic number.

145903847 is a deficient number, since it is larger than the sum of its proper divisors (1).

145903847 is an equidigital number, since it uses as much as digits as its factorization.

145903847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 145903847 is about 12079.0664788302. The cubic root of 145903847 is about 526.4481222636.

The spelling of 145903847 in words is "one hundred forty-five million, nine hundred three thousand, eight hundred forty-seven".