88731456145 has 4 divisors (see below), whose sum is σ = 106477747380. Its totient is φ = 70985164912.

The previous prime is 88731456139. The next prime is 88731456167. The reversal of 88731456145 is 54165413788.

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

It can be written as a sum of positive squares in 2 ways, for example, as 62692147456 + 26039308689 = 250384^2 + 161367^2 .

It is a cyclic number.

It is not a de Polignac number, because 88731456145 - 2⁷ = 88731456017 is a prime.

It is a super-2 number, since 2×88731456145² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 88731456092 and 88731456101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8873145610 + ... + 8873145619.

It is an arithmetic number, because the mean of its divisors is an integer number (26619436845).

Almost surely, 2^88731456145 is an apocalyptic number.

It is an amenable number.

88731456145 is a deficient number, since it is larger than the sum of its proper divisors (17746291235).

88731456145 is a wasteful number, since it uses less digits than its factorization.

88731456145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17746291234.

The product of its digits is 3225600, while the sum is 52.

The spelling of 88731456145 in words is "eighty-eight billion, seven hundred thirty-one million, four hundred fifty-six thousand, one hundred forty-five".