121240485 has 24 divisors (see below), whose sum is σ = 215279064. Its totient is φ = 63083520.

The previous prime is 121240451. The next prime is 121240487. The reversal of 121240485 is 584042121.

It can be written as a sum of positive squares in 4 ways, for example, as 7306209 + 113934276 = 2703^2 + 10674^2 .

It is not a de Polignac number, because 121240485 - 2⁹ = 121239973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121240487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31012 + ... + 34701.

It is an arithmetic number, because the mean of its divisors is an integer number (8969961).

Almost surely, 2^121240485 is an apocalyptic number.

121240485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121240485 is a deficient number, since it is larger than the sum of its proper divisors (94038579).

121240485 is a wasteful number, since it uses less digits than its factorization.

121240485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65765 (or 65762 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 121240485 is about 11010.9257104024. The cubic root of 121240485 is about 494.9362023686.

The spelling of 121240485 in words is "one hundred twenty-one million, two hundred forty thousand, four hundred eighty-five".