70105492 has 6 divisors (see below), whose sum is σ = 122684618. Its totient is φ = 35052744.

The previous prime is 70105487. The next prime is 70105493. The reversal of 70105492 is 29450107.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 69956496 + 148996 = 8364^2 + 386^2 .

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 70105492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70105493) 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, 8763183 + ... + 8763190.

Almost surely, 2^70105492 is an apocalyptic number.

It is an amenable number.

70105492 is a deficient number, since it is larger than the sum of its proper divisors (52579126).

70105492 is a wasteful number, since it uses less digits than its factorization.

70105492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17526377 (or 17526375 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 70105492 is about 8372.9022447417. The cubic root of 70105492 is about 412.3354558911.

Adding to 70105492 its reverse (29450107), we get a palindrome (99555599).

The spelling of 70105492 in words is "seventy million, one hundred five thousand, four hundred ninety-two".