7145898 has 8 divisors (see below), whose sum is σ = 14291808. Its totient is φ = 2381964.

The previous prime is 7145867. The next prime is 7145917. The reversal of 7145898 is 8985417.

It is a sphenic number, since it is the product of 3 distinct primes.

7145898 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595486 + ... + 595497.

It is an arithmetic number, because the mean of its divisors is an integer number (1786476).

Almost surely, 2^7145898 is an apocalyptic number.

7145898 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7145898 is a wasteful number, since it uses less digits than its factorization.

7145898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190988.

The product of its digits is 80640, while the sum is 42.

The square root of 7145898 is about 2673.1812508695. The cubic root of 7145898 is about 192.6130038698.

The spelling of 7145898 in words is "seven million, one hundred forty-five thousand, eight hundred ninety-eight".