145872619 has 2 divisors, whose sum is σ = 145872620. Its totient is φ = 145872618.

The previous prime is 145872607. The next prime is 145872637. The reversal of 145872619 is 916278541.

It is a weak prime.

It is an emirp because it is prime and its reverse (916278541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145872619 - 2¹⁹ = 145348331 is a prime.

It is a super-2 number, since 2×145872619² = 42557641947838322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145872659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72936309 + 72936310.

It is an arithmetic number, because the mean of its divisors is an integer number (72936310).

Almost surely, 2^145872619 is an apocalyptic number.

145872619 is a deficient number, since it is larger than the sum of its proper divisors (1).

145872619 is an equidigital number, since it uses as much as digits as its factorization.

145872619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 43.

The square root of 145872619 is about 12077.7737600934. The cubic root of 145872619 is about 526.4105607797.

The spelling of 145872619 in words is "one hundred forty-five million, eight hundred seventy-two thousand, six hundred nineteen".