145165403 has 2 divisors, whose sum is σ = 145165404. Its totient is φ = 145165402.

The previous prime is 145165369. The next prime is 145165409. The reversal of 145165403 is 304561541.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145165403 - 2⁸ = 145165147 is a prime.

It is not a weakly prime, because it can be changed into another prime (145165409) 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, 72582701 + 72582702.

It is an arithmetic number, because the mean of its divisors is an integer number (72582702).

Almost surely, 2^145165403 is an apocalyptic number.

145165403 is a deficient number, since it is larger than the sum of its proper divisors (1).

145165403 is an equidigital number, since it uses as much as digits as its factorization.

145165403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 145165403 is about 12048.4606070651. The cubic root of 145165403 is about 525.5584720755.

The spelling of 145165403 in words is "one hundred forty-five million, one hundred sixty-five thousand, four hundred three".