121677830 has 32 divisors (see below), whose sum is σ = 229758336. Its totient is φ = 46341504.

The previous prime is 121677827. The next prime is 121677833. The reversal of 121677830 is 38776121.

It is an interprime number because it is at equal distance from previous prime (121677827) and next prime (121677833).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121677833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13892 + ... + 20888.

It is an arithmetic number, because the mean of its divisors is an integer number (7179948).

Almost surely, 2^121677830 is an apocalyptic number.

121677830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121677830 is a deficient number, since it is larger than the sum of its proper divisors (108080506).

121677830 is a wasteful number, since it uses less digits than its factorization.

121677830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7088.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 121677830 is about 11030.7674257052. The cubic root of 121677830 is about 495.5306081098.

The spelling of 121677830 in words is "one hundred twenty-one million, six hundred seventy-seven thousand, eight hundred thirty".