121024157 has 2 divisors, whose sum is σ = 121024158. Its totient is φ = 121024156.

The previous prime is 121024133. The next prime is 121024181. The reversal of 121024157 is 751420121.

It is a balanced prime because it is at equal distance from previous prime (121024133) and next prime (121024181).

It can be written as a sum of positive squares in only one way, i.e., 111746041 + 9278116 = 10571^2 + 3046^2 .

It is a cyclic number.

It is not a de Polignac number, because 121024157 - 2¹² = 121020061 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121024187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60512078 + 60512079.

It is an arithmetic number, because the mean of its divisors is an integer number (60512079).

Almost surely, 2^121024157 is an apocalyptic number.

It is an amenable number.

121024157 is a deficient number, since it is larger than the sum of its proper divisors (1).

121024157 is an equidigital number, since it uses as much as digits as its factorization.

121024157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 121024157 is about 11001.0979906553. The cubic root of 121024157 is about 494.6416574609.

Adding to 121024157 its reverse (751420121), we get a palindrome (872444278).

The spelling of 121024157 in words is "one hundred twenty-one million, twenty-four thousand, one hundred fifty-seven".