121652287 has 2 divisors, whose sum is σ = 121652288. Its totient is φ = 121652286.

The previous prime is 121652281. The next prime is 121652341. The reversal of 121652287 is 782256121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121652287 - 2¹⁹ = 121127999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121652281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60826143 + 60826144.

It is an arithmetic number, because the mean of its divisors is an integer number (60826144).

Almost surely, 2^121652287 is an apocalyptic number.

121652287 is a deficient number, since it is larger than the sum of its proper divisors (1).

121652287 is an equidigital number, since it uses as much as digits as its factorization.

121652287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 34.

The square root of 121652287 is about 11029.6095579127. The cubic root of 121652287 is about 495.4959312255.

It can be divided in two parts, 1216522 and 87, that added together give a square (1216609 = 1103²).

The spelling of 121652287 in words is "one hundred twenty-one million, six hundred fifty-two thousand, two hundred eighty-seven".