121262525 has 6 divisors (see below), whose sum is σ = 150365562. Its totient is φ = 97010000.

The previous prime is 121262501. The next prime is 121262527. The reversal of 121262525 is 525262121.

It can be written as a sum of positive squares in 3 ways, for example, as 16630084 + 104632441 = 4078^2 + 10229^2 .

It is not a de Polignac number, because 121262525 - 2¹² = 121258429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121262494 and 121262503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121262527) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2425226 + ... + 2425275.

It is an arithmetic number, because the mean of its divisors is an integer number (25060927).

Almost surely, 2^121262525 is an apocalyptic number.

It is an amenable number.

121262525 is a deficient number, since it is larger than the sum of its proper divisors (29103037).

121262525 is an equidigital number, since it uses as much as digits as its factorization.

121262525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850511 (or 4850506 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 121262525 is about 11011.9264890391. The cubic root of 121262525 is about 494.9661916167.

The spelling of 121262525 in words is "one hundred twenty-one million, two hundred sixty-two thousand, five hundred twenty-five".