121696510 has 16 divisors (see below), whose sum is σ = 235904256. Its totient is φ = 44934048.

The previous prime is 121696481. The next prime is 121696513. The reversal of 121696510 is 15696121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121696513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467934 + ... + 468193.

It is an arithmetic number, because the mean of its divisors is an integer number (14744016).

Almost surely, 2^121696510 is an apocalyptic number.

121696510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121696510 is a deficient number, since it is larger than the sum of its proper divisors (114207746).

121696510 is a wasteful number, since it uses less digits than its factorization.

121696510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936147.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 121696510 is about 11031.6141158037. The cubic root of 121696510 is about 495.5559647918. Note that the first 3 decimals are identical.

The spelling of 121696510 in words is "one hundred twenty-one million, six hundred ninety-six thousand, five hundred ten".