145303619 has 2 divisors, whose sum is σ = 145303620. Its totient is φ = 145303618.

The previous prime is 145303567. The next prime is 145303661. The reversal of 145303619 is 916303541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145303619 - 2²⁰ = 144255043 is a prime.

It is a super-2 number, since 2×145303619² = 42226283388994322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145303679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72651809 + 72651810.

It is an arithmetic number, because the mean of its divisors is an integer number (72651810).

Almost surely, 2^145303619 is an apocalyptic number.

145303619 is a deficient number, since it is larger than the sum of its proper divisors (1).

145303619 is an equidigital number, since it uses as much as digits as its factorization.

145303619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 145303619 is about 12054.1950788927. The cubic root of 145303619 is about 525.7252187568.

The spelling of 145303619 in words is "one hundred forty-five million, three hundred three thousand, six hundred nineteen".