145015603 has 2 divisors, whose sum is σ = 145015604. Its totient is φ = 145015602.

The previous prime is 145015601. The next prime is 145015609. The reversal of 145015603 is 306510541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145015603 - 2¹ = 145015601 is a prime.

It is a super-2 number, since 2×145015603² = 42059050226907218, which contains 22 as substring.

Together with 145015601, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (145015601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72507801 + 72507802.

It is an arithmetic number, because the mean of its divisors is an integer number (72507802).

Almost surely, 2^145015603 is an apocalyptic number.

145015603 is a deficient number, since it is larger than the sum of its proper divisors (1).

145015603 is an equidigital number, since it uses as much as digits as its factorization.

145015603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 145015603 is about 12042.2424406752. The cubic root of 145015603 is about 525.3776306496.

The spelling of 145015603 in words is "one hundred forty-five million, fifteen thousand, six hundred three".