121632726 has 16 divisors (see below), whose sum is σ = 245182464. Its totient is φ = 40224744.

The previous prime is 121632713. The next prime is 121632733. The reversal of 121632726 is 627236121.

It is a junction number, because it is equal to n+sod(n) for n = 121632693 and 121632702.

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, 79050 + ... + 80573.

It is an arithmetic number, because the mean of its divisors is an integer number (15323904).

Almost surely, 2^121632726 is an apocalyptic number.

121632726 is an abundant number, since it is smaller than the sum of its proper divisors (123549738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121632726 is a wasteful number, since it uses less digits than its factorization.

121632726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159755.

The product of its digits is 6048, while the sum is 30.

The square root of 121632726 is about 11028.7227728328. The cubic root of 121632726 is about 495.4693721537.

Adding to 121632726 its reverse (627236121), we get a palindrome (748868847).

The spelling of 121632726 in words is "one hundred twenty-one million, six hundred thirty-two thousand, seven hundred twenty-six".