121257673 has 2 divisors, whose sum is σ = 121257674. Its totient is φ = 121257672.

The previous prime is 121257667. The next prime is 121257727. The reversal of 121257673 is 376752121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119836809 + 1420864 = 10947^2 + 1192^2 .

It is a cyclic number.

It is not a de Polignac number, because 121257673 - 2⁵ = 121257641 is a prime.

It is a super-2 number, since 2×121257673² = 29406846522749858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121252673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60628836 + 60628837.

It is an arithmetic number, because the mean of its divisors is an integer number (60628837).

Almost surely, 2^121257673 is an apocalyptic number.

It is an amenable number.

121257673 is a deficient number, since it is larger than the sum of its proper divisors (1).

121257673 is an equidigital number, since it uses as much as digits as its factorization.

121257673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 34.

The square root of 121257673 is about 11011.7061802429. The cubic root of 121257673 is about 494.9595899399.

It can be divided in two parts, 1212 and 57673, that added together give a palindrome (58885).

The spelling of 121257673 in words is "one hundred twenty-one million, two hundred fifty-seven thousand, six hundred seventy-three".