145637803 has 2 divisors, whose sum is σ = 145637804. Its totient is φ = 145637802.

The previous prime is 145637773. The next prime is 145637813. The reversal of 145637803 is 308736541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145637803 - 2¹³ = 145629611 is a prime.

It is not a weakly prime, because it can be changed into another prime (145637813) 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, 72818901 + 72818902.

It is an arithmetic number, because the mean of its divisors is an integer number (72818902).

Almost surely, 2^145637803 is an apocalyptic number.

145637803 is a deficient number, since it is larger than the sum of its proper divisors (1).

145637803 is an equidigital number, since it uses as much as digits as its factorization.

145637803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 145637803 is about 12068.0488480947. The cubic root of 145637803 is about 526.1279488940.

It can be divided in two parts, 14563 and 7803, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 145637803 in words is "one hundred forty-five million, six hundred thirty-seven thousand, eight hundred three".