70153121 has 2 divisors, whose sum is σ = 70153122. Its totient is φ = 70153120.

The previous prime is 70153103. The next prime is 70153129. The reversal of 70153121 is 12135107.

70153121 is nontrivially palindromic in base 2.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69488896 + 664225 = 8336^2 + 815^2 .

It is a cyclic number.

It is not a de Polignac number, because 70153121 - 2²² = 65958817 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 70153093 and 70153102.

It is not a weakly prime, because it can be changed into another prime (70153129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35076560 + 35076561.

It is an arithmetic number, because the mean of its divisors is an integer number (35076561).

Almost surely, 2^70153121 is an apocalyptic number.

It is an amenable number.

70153121 is a deficient number, since it is larger than the sum of its proper divisors (1).

70153121 is an equidigital number, since it uses as much as digits as its factorization.

70153121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 70153121 is about 8375.7459966262. The cubic root of 70153121 is about 412.4288136724.

Adding to 70153121 its reverse (12135107), we get a palindrome (82288228).

The spelling of 70153121 in words is "seventy million, one hundred fifty-three thousand, one hundred twenty-one".