121652469 has 8 divisors (see below), whose sum is σ = 180225920. Its totient is φ = 81101628.

The previous prime is 121652467. The next prime is 121652471. The reversal of 121652469 is 964256121.

121652469 is a `hidden beast` number, since 121 + 6 + 524 + 6 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (121652467) and next prime (121652471).

It is not a de Polignac number, because 121652469 - 2¹ = 121652467 is a prime.

It is a super-2 number, since 2×121652469² = 29598646427591922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121652467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2252797 + ... + 2252850.

It is an arithmetic number, because the mean of its divisors is an integer number (22528240).

Almost surely, 2^121652469 is an apocalyptic number.

It is an amenable number.

121652469 is a deficient number, since it is larger than the sum of its proper divisors (58573451).

121652469 is an equidigital number, since it uses as much as digits as its factorization.

121652469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4505656 (or 4505650 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 121652469 is about 11029.6178084284. The cubic root of 121652469 is about 495.4961783238.

The spelling of 121652469 in words is "one hundred twenty-one million, six hundred fifty-two thousand, four hundred sixty-nine".