98144731 has 4 divisors (see below), whose sum is σ = 98732592. Its totient is φ = 97556872.

The previous prime is 98144707. The next prime is 98144741. The reversal of 98144731 is 13744189.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 98144731 - 2⁵ = 98144699 is a prime.

It is a super-2 number, since 2×98144731² = 19264776446124722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98144741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293680 + ... + 294013.

It is an arithmetic number, because the mean of its divisors is an integer number (24683148).

Almost surely, 2^98144731 is an apocalyptic number.

98144731 is a deficient number, since it is larger than the sum of its proper divisors (587861).

98144731 is a wasteful number, since it uses less digits than its factorization.

98144731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587860.

The product of its digits is 24192, while the sum is 37.

The square root of 98144731 is about 9906.8022590541. The cubic root of 98144731 is about 461.2704811914.

The spelling of 98144731 in words is "ninety-eight million, one hundred forty-four thousand, seven hundred thirty-one".