1357218029 has 2 divisors, whose sum is σ = 1357218030. Its totient is φ = 1357218028.

The previous prime is 1357218019. The next prime is 1357218047. The reversal of 1357218029 is 9208127531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1356448900 + 769129 = 36830^2 + 877^2 .

It is a cyclic number.

It is not a de Polignac number, because 1357218029 - 2⁸ = 1357217773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1357217983 and 1357218001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1357218019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678609014 + 678609015.

It is an arithmetic number, because the mean of its divisors is an integer number (678609015).

Almost surely, 2^1357218029 is an apocalyptic number.

It is an amenable number.

1357218029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1357218029 is an equidigital number, since it uses as much as digits as its factorization.

1357218029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 1357218029 is about 36840.4401303785. The cubic root of 1357218029 is about 1107.1756862151.

The spelling of 1357218029 in words is "one billion, three hundred fifty-seven million, two hundred eighteen thousand, twenty-nine".