70194681 has 14 divisors (see below), whose sum is σ = 105244970. Its totient is φ = 46795968.

The previous prime is 70194673. The next prime is 70194701. The reversal of 70194681 is 18649107.

It can be written as a sum of positive squares in only one way, i.e., 62157456 + 8037225 = 7884^2 + 2835^2 .

It is not a de Polignac number, because 70194681 - 2³ = 70194673 is a prime.

It is a super-2 number, since 2×70194681² = 9854586481383522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70194611) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 47416 + ... + 48873.

Almost surely, 2^70194681 is an apocalyptic number.

It is an amenable number.

70194681 is a deficient number, since it is larger than the sum of its proper divisors (35050289).

70194681 is an frugal number, since it uses more digits than its factorization.

70194681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96307 (or 96292 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 70194681 is about 8378.2266023306. The cubic root of 70194681 is about 412.5102410681.

The spelling of 70194681 in words is "seventy million, one hundred ninety-four thousand, six hundred eighty-one".