145233462091 has 2 divisors, whose sum is σ = 145233462092. Its totient is φ = 145233462090.

The previous prime is 145233462013. The next prime is 145233462109. The reversal of 145233462091 is 190264332541.

Together with next prime (145233462109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145233462091 is a prime.

It is not a weakly prime, because it can be changed into another prime (145233462691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72616731045 + 72616731046.

It is an arithmetic number, because the mean of its divisors is an integer number (72616731046).

Almost surely, 2^145233462091 is an apocalyptic number.

145233462091 is a deficient number, since it is larger than the sum of its proper divisors (1).

145233462091 is an equidigital number, since it uses as much as digits as its factorization.

145233462091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 145233462091 in words is "one hundred forty-five billion, two hundred thirty-three million, four hundred sixty-two thousand, ninety-one".