121542267 has 16 divisors (see below), whose sum is σ = 202044672. Its totient is φ = 63138720.

The previous prime is 121542247. The next prime is 121542269. The reversal of 121542267 is 762245121.

It is not a de Polignac number, because 121542267 - 2⁶ = 121542203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121542269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262848 + ... + 263309.

It is an arithmetic number, because the mean of its divisors is an integer number (12627792).

Almost surely, 2^121542267 is an apocalyptic number.

121542267 is a deficient number, since it is larger than the sum of its proper divisors (80502405).

121542267 is a wasteful number, since it uses less digits than its factorization.

121542267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526178.

The product of its digits is 6720, while the sum is 30.

The square root of 121542267 is about 11024.6209458648. The cubic root of 121542267 is about 495.3465138275.

Adding to 121542267 its reverse (762245121), we get a palindrome (883787388).

It can be divided in two parts, 12 and 1542267, that multiplied together give a square (18507204 = 4302²).

The spelling of 121542267 in words is "one hundred twenty-one million, five hundred forty-two thousand, two hundred sixty-seven".