121326164 has 6 divisors (see below), whose sum is σ = 212320794. Its totient is φ = 60663080.

The previous prime is 121326151. The next prime is 121326181. The reversal of 121326164 is 461623121.

It can be written as a sum of positive squares in only one way, i.e., 94906564 + 26419600 = 9742^2 + 5140^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15165767 + ... + 15165774.

It is an arithmetic number, because the mean of its divisors is an integer number (35386799).

Almost surely, 2^121326164 is an apocalyptic number.

It is an amenable number.

121326164 is a deficient number, since it is larger than the sum of its proper divisors (90994630).

121326164 is a wasteful number, since it uses less digits than its factorization.

121326164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30331545 (or 30331543 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 121326164 is about 11014.8156589205. The cubic root of 121326164 is about 495.0527631408.

Adding to 121326164 its reverse (461623121), we get a palindrome (582949285).

The spelling of 121326164 in words is "one hundred twenty-one million, three hundred twenty-six thousand, one hundred sixty-four".