145389895 has 32 divisors (see below), whose sum is σ = 207277056. Its totient is φ = 95827200.

The previous prime is 145389889. The next prime is 145389911. The reversal of 145389895 is 598983541.

145389895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145389895 - 2⁵ = 145389863 is a prime.

It is a super-2 number, since 2×145389895² = 42276443136222050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101172 + ... + 102598.

It is an arithmetic number, because the mean of its divisors is an integer number (6477408).

Almost surely, 2^145389895 is an apocalyptic number.

145389895 is a deficient number, since it is larger than the sum of its proper divisors (61887161).

145389895 is a wasteful number, since it uses less digits than its factorization.

145389895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551.

The product of its digits is 1555200, while the sum is 52.

The square root of 145389895 is about 12057.7732189654. The cubic root of 145389895 is about 525.8292503357.

The spelling of 145389895 in words is "one hundred forty-five million, three hundred eighty-nine thousand, eight hundred ninety-five".