121354537 has 2 divisors, whose sum is σ = 121354538. Its totient is φ = 121354536.

The previous prime is 121354529. The next prime is 121354573. The reversal of 121354537 is 735453121.

It is a happy number.

Together with next prime (121354573) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90839961 + 30514576 = 9531^2 + 5524^2 .

It is a cyclic number.

It is not a de Polignac number, because 121354537 - 2³ = 121354529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121354499 and 121354508.

It is not a weakly prime, because it can be changed into another prime (121354637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60677268 + 60677269.

It is an arithmetic number, because the mean of its divisors is an integer number (60677269).

Almost surely, 2^121354537 is an apocalyptic number.

It is an amenable number.

121354537 is a deficient number, since it is larger than the sum of its proper divisors (1).

121354537 is an equidigital number, since it uses as much as digits as its factorization.

121354537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 31.

The square root of 121354537 is about 11016.1035307408. The cubic root of 121354537 is about 495.0913506880.

The spelling of 121354537 in words is "one hundred twenty-one million, three hundred fifty-four thousand, five hundred thirty-seven".