121144264 has 8 divisors (see below), whose sum is σ = 227145510. Its totient is φ = 60572128.

The previous prime is 121144229. The next prime is 121144267. The reversal of 121144264 is 462441121.

It can be written as a sum of positive squares in only one way, i.e., 101163364 + 19980900 = 10058^2 + 4470^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×121144264³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121144267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7571509 + ... + 7571524.

Almost surely, 2^121144264 is an apocalyptic number.

It is an amenable number.

121144264 is a deficient number, since it is larger than the sum of its proper divisors (106001246).

121144264 is a wasteful number, since it uses less digits than its factorization.

121144264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15143039 (or 15143035 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 121144264 is about 11006.5555011548. Note that the first 4 decimals coincide. The cubic root of 121144264 is about 494.8052343991.

Adding to 121144264 its reverse (462441121), we get a palindrome (583585385).

The spelling of 121144264 in words is "one hundred twenty-one million, one hundred forty-four thousand, two hundred sixty-four".