195151945 has 8 divisors (see below), whose sum is σ = 246507840. Its totient is φ = 147904560.

The previous prime is 195151939. The next prime is 195151951. The reversal of 195151945 is 549151591.

It is an interprime number because it is at equal distance from previous prime (195151939) and next prime (195151951).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 195151945 - 2²¹ = 193054793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 195151898 and 195151907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1027021 + ... + 1027210.

It is an arithmetic number, because the mean of its divisors is an integer number (30813480).

Almost surely, 2^195151945 is an apocalyptic number.

It is an amenable number.

195151945 is a deficient number, since it is larger than the sum of its proper divisors (51355895).

195151945 is a wasteful number, since it uses less digits than its factorization.

195151945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054255.

The product of its digits is 40500, while the sum is 40.

The square root of 195151945 is about 13969.6794880913. The cubic root of 195151945 is about 580.0395781553.

The spelling of 195151945 in words is "one hundred ninety-five million, one hundred fifty-one thousand, nine hundred forty-five".