121674565 has 8 divisors (see below), whose sum is σ = 148403448. Its totient is φ = 95743680.

The previous prime is 121674551. The next prime is 121674571. The reversal of 121674565 is 565476121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6713281 + 114961284 = 2591^2 + 10722^2 .

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

It is not a de Polignac number, because 121674565 - 2²¹ = 119577413 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

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, 199162 + ... + 199771.

It is an arithmetic number, because the mean of its divisors is an integer number (18550431).

Almost surely, 2^121674565 is an apocalyptic number.

It is an amenable number.

121674565 is a deficient number, since it is larger than the sum of its proper divisors (26728883).

121674565 is an equidigital number, since it uses as much as digits as its factorization.

121674565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398999.

The product of its digits is 50400, while the sum is 37.

The square root of 121674565 is about 11030.6194295697. The cubic root of 121674565 is about 495.5261758537.

The spelling of 121674565 in words is "one hundred twenty-one million, six hundred seventy-four thousand, five hundred sixty-five".