98490721145 has 8 divisors (see below), whose sum is σ = 118190754504. Its totient is φ = 78791317504.

The previous prime is 98490721051. The next prime is 98490721157. The reversal of 98490721145 is 54112709489.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14430736384 + 84059984761 = 120128^2 + 289931^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 98490721145 - 2¹⁰ = 98490720121 is a prime.

It is a super-2 number, since 2×98490721145² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 98490721093 and 98490721102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316217 + ... + 544953.

It is an arithmetic number, because the mean of its divisors is an integer number (14773844313).

Almost surely, 2^98490721145 is an apocalyptic number.

It is an amenable number.

98490721145 is a deficient number, since it is larger than the sum of its proper divisors (19700033359).

98490721145 is a wasteful number, since it uses less digits than its factorization.

98490721145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314859.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 98490721145 in words is "ninety-eight billion, four hundred ninety million, seven hundred twenty-one thousand, one hundred forty-five".