121711652 has 6 divisors (see below), whose sum is σ = 212995398. Its totient is φ = 60855824.

The previous prime is 121711651. The next prime is 121711669. The reversal of 121711652 is 256117121.

It can be written as a sum of positive squares in only one way, i.e., 61089856 + 60621796 = 7816^2 + 7786^2 .

It is not an unprimeable number, because it can be changed into a prime (121711651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15213953 + ... + 15213960.

It is an arithmetic number, because the mean of its divisors is an integer number (35499233).

Almost surely, 2^121711652 is an apocalyptic number.

It is an amenable number.

121711652 is a deficient number, since it is larger than the sum of its proper divisors (91283746).

121711652 is a wasteful number, since it uses less digits than its factorization.

121711652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30427917 (or 30427915 counting only the distinct ones).

The product of its digits is 840, while the sum is 26.

The square root of 121711652 is about 11032.3003947500. The cubic root of 121711652 is about 495.5765170033.

Adding to 121711652 its reverse (256117121), we get a palindrome (377828773).

The spelling of 121711652 in words is "one hundred twenty-one million, seven hundred eleven thousand, six hundred fifty-two".