195152761 has 4 divisors (see below), whose sum is σ = 197047552. Its totient is φ = 193257972.

The previous prime is 195152753. The next prime is 195152767. The reversal of 195152761 is 167251591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 195152761 - 2³ = 195152753 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 195152761.

It is not an unprimeable number, because it can be changed into a prime (195152767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947241 + ... + 947446.

It is an arithmetic number, because the mean of its divisors is an integer number (49261888).

Almost surely, 2^195152761 is an apocalyptic number.

It is an amenable number.

195152761 is a deficient number, since it is larger than the sum of its proper divisors (1894791).

195152761 is a wasteful number, since it uses less digits than its factorization.

195152761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894790.

The product of its digits is 18900, while the sum is 37.

The square root of 195152761 is about 13969.7086941711. The cubic root of 195152761 is about 580.0403866051.

The spelling of 195152761 in words is "one hundred ninety-five million, one hundred fifty-two thousand, seven hundred sixty-one".