121672365 has 32 divisors (see below), whose sum is σ = 204788736. Its totient is φ = 61601280.

The previous prime is 121672339. The next prime is 121672373. The reversal of 121672365 is 563276121.

It is not a de Polignac number, because 121672365 - 2¹¹ = 121670317 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22177 + ... + 27113.

It is an arithmetic number, because the mean of its divisors is an integer number (6399648).

Almost surely, 2^121672365 is an apocalyptic number.

121672365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121672365 is a deficient number, since it is larger than the sum of its proper divisors (83116371).

121672365 is a wasteful number, since it uses less digits than its factorization.

121672365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5029.

The product of its digits is 15120, while the sum is 33.

The square root of 121672365 is about 11030.5197067047. The cubic root of 121672365 is about 495.5231892965.

The spelling of 121672365 in words is "one hundred twenty-one million, six hundred seventy-two thousand, three hundred sixty-five".