145020195 has 24 divisors (see below), whose sum is σ = 251654832. Its totient is φ = 77256000.

The previous prime is 145020167. The next prime is 145020247. The reversal of 145020195 is 591020541.

145020195 is a `hidden beast` number, since 1 + 450 + 20 + 195 = 666.

It is not a de Polignac number, because 145020195 - 2⁵ = 145020163 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64185 + ... + 66405.

It is an arithmetic number, because the mean of its divisors is an integer number (10485618).

Almost surely, 2^145020195 is an apocalyptic number.

145020195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145020195 is a deficient number, since it is larger than the sum of its proper divisors (106634637).

145020195 is a wasteful number, since it uses less digits than its factorization.

145020195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3683 (or 3680 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 145020195 is about 12042.4331013296. The cubic root of 145020195 is about 525.3831760497.

The spelling of 145020195 in words is "one hundred forty-five million, twenty thousand, one hundred ninety-five".