121464457 has 4 divisors (see below), whose sum is σ = 123175296. Its totient is φ = 119753620.

The previous prime is 121464443. The next prime is 121464461. The reversal of 121464457 is 754464121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 754464121 = 317 ⋅2380013.

It is a cyclic number.

It is not a de Polignac number, because 121464457 - 2¹¹ = 121462409 is a prime.

It is a super-4 number, since 4×121464457⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121464407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 855313 + ... + 855454.

It is an arithmetic number, because the mean of its divisors is an integer number (30793824).

Almost surely, 2^121464457 is an apocalyptic number.

It is an amenable number.

121464457 is a deficient number, since it is larger than the sum of its proper divisors (1710839).

121464457 is an equidigital number, since it uses as much as digits as its factorization.

121464457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710838.

The product of its digits is 26880, while the sum is 34.

The square root of 121464457 is about 11021.0914613753. The cubic root of 121464457 is about 495.2407861630.

The spelling of 121464457 in words is "one hundred twenty-one million, four hundred sixty-four thousand, four hundred fifty-seven".