70350157 has 2 divisors, whose sum is σ = 70350158. Its totient is φ = 70350156.

The previous prime is 70350149. The next prime is 70350187. The reversal of 70350157 is 75105307.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63027721 + 7322436 = 7939^2 + 2706^2 .

It is an emirp because it is prime and its reverse (75105307) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70350157 - 2³ = 70350149 is a prime.

It is the 8388-th Hogben number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70350127) by changing a digit.

It is a nontrivial repunit in base 8387.

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, 35175078 + 35175079.

It is an arithmetic number, because the mean of its divisors is an integer number (35175079).

Almost surely, 2^70350157 is an apocalyptic number.

It is an amenable number.

70350157 is a deficient number, since it is larger than the sum of its proper divisors (1).

70350157 is an equidigital number, since it uses as much as digits as its factorization.

70350157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3675, while the sum is 28.

The square root of 70350157 is about 8387.5000447094. The cubic root of 70350157 is about 412.8145763242.

It can be divided in two parts, 70350 and 157, that added together give a palindrome (70507).

The spelling of 70350157 in words is "seventy million, three hundred fifty thousand, one hundred fifty-seven".