98136547531 has 32 divisors (see below), whose sum is σ = 113524473600. Its totient is φ = 83897856000.

The previous prime is 98136547501. The next prime is 98136547577. The reversal of 98136547531 is 13574563189.

It is a 12-Lehmer number, since φ(98136547531) divides (98136547531-1)¹².

It is a cyclic number.

It is not a de Polignac number, because 98136547531 - 2¹³ = 98136539339 is a prime.

It is a super-2 number, since 2×98136547531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98136547501) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 18033771 + ... + 18039211.

It is an arithmetic number, because the mean of its divisors is an integer number (3547639800).

Almost surely, 2^98136547531 is an apocalyptic number.

98136547531 is the 140098-th centered decagonal number.

98136547531 is a deficient number, since it is larger than the sum of its proper divisors (15387926069).

98136547531 is a wasteful number, since it uses less digits than its factorization.

98136547531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6091.

The product of its digits is 2721600, while the sum is 52.

The spelling of 98136547531 in words is "ninety-eight billion, one hundred thirty-six million, five hundred forty-seven thousand, five hundred thirty-one".