121162573 has 4 divisors (see below), whose sum is σ = 138471520. Its totient is φ = 103853628.

The previous prime is 121162567. The next prime is 121162579. The reversal of 121162573 is 375261121.

It is a happy number.

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: 375261121 = 6451 ⋅58171.

It is an interprime number because it is at equal distance from previous prime (121162567) and next prime (121162579).

It is a cyclic number.

It is not a de Polignac number, because 121162573 - 2⁵ = 121162541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121162579) 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, 8654463 + ... + 8654476.

It is an arithmetic number, because the mean of its divisors is an integer number (34617880).

Almost surely, 2^121162573 is an apocalyptic number.

It is an amenable number.

121162573 is a deficient number, since it is larger than the sum of its proper divisors (17308947).

121162573 is an equidigital number, since it uses as much as digits as its factorization.

121162573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17308946.

The product of its digits is 2520, while the sum is 28.

The square root of 121162573 is about 11007.3872013298. The cubic root of 121162573 is about 494.8301604181.

The spelling of 121162573 in words is "one hundred twenty-one million, one hundred sixty-two thousand, five hundred seventy-three".