70149898 has 32 divisors (see below), whose sum is σ = 133983360. Its totient is φ = 26792640.

The previous prime is 70149851. The next prime is 70149923. The reversal of 70149898 is 89894107.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1368 + ... + 11923.

It is an arithmetic number, because the mean of its divisors is an integer number (4186980).

Almost surely, 2^70149898 is an apocalyptic number.

70149898 is a deficient number, since it is larger than the sum of its proper divisors (63833462).

70149898 is a wasteful number, since it uses less digits than its factorization.

70149898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13342.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 70149898 is about 8375.5535936438. The cubic root of 70149898 is about 412.4224975912.

The spelling of 70149898 in words is "seventy million, one hundred forty-nine thousand, eight hundred ninety-eight".