145347619 has 2 divisors, whose sum is σ = 145347620. Its totient is φ = 145347618.

The previous prime is 145347607. The next prime is 145347647. The reversal of 145347619 is 916743541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145347619 - 2⁹ = 145347107 is a prime.

It is a super-2 number, since 2×145347619² = 42251860697938322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145347659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72673809 + 72673810.

It is an arithmetic number, because the mean of its divisors is an integer number (72673810).

Almost surely, 2^145347619 is an apocalyptic number.

145347619 is a deficient number, since it is larger than the sum of its proper divisors (1).

145347619 is an equidigital number, since it uses as much as digits as its factorization.

145347619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 145347619 is about 12056.0200315029. The cubic root of 145347619 is about 525.7782790896.

The spelling of 145347619 in words is "one hundred forty-five million, three hundred forty-seven thousand, six hundred nineteen".