145887403 has 2 divisors, whose sum is σ = 145887404. Its totient is φ = 145887402.

The previous prime is 145887397. The next prime is 145887419. The reversal of 145887403 is 304788541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145887403 - 2⁹ = 145886891 is a prime.

It is not a weakly prime, because it can be changed into another prime (145887473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72943701 + 72943702.

It is an arithmetic number, because the mean of its divisors is an integer number (72943702).

Almost surely, 2^145887403 is an apocalyptic number.

145887403 is a deficient number, since it is larger than the sum of its proper divisors (1).

145887403 is an equidigital number, since it uses as much as digits as its factorization.

145887403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 145887403 is about 12078.3857779092. The cubic root of 145887403 is about 526.4283438539.

The spelling of 145887403 in words is "one hundred forty-five million, eight hundred eighty-seven thousand, four hundred three".