70105951 has 2 divisors, whose sum is σ = 70105952. Its totient is φ = 70105950.

The previous prime is 70105949. The next prime is 70105957. The reversal of 70105951 is 15950107.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70105951 - 2¹ = 70105949 is a prime.

It is a super-2 number, since 2×70105951² = 9829688731228802, which contains 22 as substring.

Together with 70105949, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70105957) 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, 35052975 + 35052976.

It is an arithmetic number, because the mean of its divisors is an integer number (35052976).

Almost surely, 2^70105951 is an apocalyptic number.

70105951 is a deficient number, since it is larger than the sum of its proper divisors (1).

70105951 is an equidigital number, since it uses as much as digits as its factorization.

70105951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1575, while the sum is 28.

The square root of 70105951 is about 8372.9296545474. The cubic root of 70105951 is about 412.3363557805.

The spelling of 70105951 in words is "seventy million, one hundred five thousand, nine hundred fifty-one".