742121153 has 2 divisors, whose sum is σ = 742121154. Its totient is φ = 742121152.

The previous prime is 742121137. The next prime is 742121161. The reversal of 742121153 is 351121247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 722158129 + 19963024 = 26873^2 + 4468^2 .

It is a cyclic number.

It is not a de Polignac number, because 742121153 - 2⁴ = 742121137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (742121123) 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, 371060576 + 371060577.

It is an arithmetic number, because the mean of its divisors is an integer number (371060577).

Almost surely, 2^742121153 is an apocalyptic number.

It is an amenable number.

742121153 is a deficient number, since it is larger than the sum of its proper divisors (1).

742121153 is an equidigital number, since it uses as much as digits as its factorization.

742121153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 26.

The square root of 742121153 is about 27241.9006862590. The cubic root of 742121153 is about 905.3675757238.

The spelling of 742121153 in words is "seven hundred forty-two million, one hundred twenty-one thousand, one hundred fifty-three".