196154965 has 4 divisors (see below), whose sum is σ = 235385964. Its totient is φ = 156923968.

The previous prime is 196154953. The next prime is 196154969. The reversal of 196154965 is 569451691.

It is a happy number.

196154965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 569451691 = 4447 ⋅128053.

It can be written as a sum of positive squares in 2 ways, for example, as 107682129 + 88472836 = 10377^2 + 9406^2 .

It is a cyclic number.

It is not a de Polignac number, because 196154965 - 2²¹ = 194057813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196154969) 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, 19615492 + ... + 19615501.

It is an arithmetic number, because the mean of its divisors is an integer number (58846491).

Almost surely, 2^196154965 is an apocalyptic number.

It is an amenable number.

196154965 is a deficient number, since it is larger than the sum of its proper divisors (39230999).

196154965 is an equidigital number, since it uses as much as digits as its factorization.

196154965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39230998.

The product of its digits is 291600, while the sum is 46.

The square root of 196154965 is about 14005.5333707789. The cubic root of 196154965 is about 581.0316212054.

The spelling of 196154965 in words is "one hundred ninety-six million, one hundred fifty-four thousand, nine hundred sixty-five".