121667045 has 8 divisors (see below), whose sum is σ = 154588824. Its totient is φ = 91608064.

The previous prime is 121667017. The next prime is 121667057. The reversal of 121667045 is 540766121.

It can be written as a sum of positive squares in 4 ways, for example, as 67010596 + 54656449 = 8186^2 + 7393^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 121667045 - 2²⁰ = 120618469 is a prime.

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, 715604 + ... + 715773.

It is an arithmetic number, because the mean of its divisors is an integer number (19323603).

Almost surely, 2^121667045 is an apocalyptic number.

It is an amenable number.

121667045 is a deficient number, since it is larger than the sum of its proper divisors (32921779).

121667045 is a wasteful number, since it uses less digits than its factorization.

121667045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431399.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 121667045 is about 11030.2785549595. The cubic root of 121667045 is about 495.5159671093.

The spelling of 121667045 in words is "one hundred twenty-one million, six hundred sixty-seven thousand, forty-five".