70198144 has 16 divisors (see below), whose sum is σ = 139848120. Its totient is φ = 35099008.

The previous prime is 70198133. The next prime is 70198147. The reversal of 70198144 is 44189107.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70198147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274084 + ... + 274339.

Almost surely, 2^70198144 is an apocalyptic number.

It is an amenable number.

70198144 is a deficient number, since it is larger than the sum of its proper divisors (69649976).

70198144 is an equidigital number, since it uses as much as digits as its factorization.

70198144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548437 (or 548425 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 70198144 is about 8378.4332664288. The cubic root of 70198144 is about 412.5170245805.

The spelling of 70198144 in words is "seventy million, one hundred ninety-eight thousand, one hundred forty-four".