97145444 has 48 divisors (see below), whose sum is σ = 194482176. Its totient is φ = 42055200.

The previous prime is 97145443. The next prime is 97145479. The reversal of 97145444 is 44454179.

It is a junction number, because it is equal to n+sod(n) for n = 97145398 and 97145407.

It is not an unprimeable number, because it can be changed into a prime (97145443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90857 + ... + 91919.

It is an arithmetic number, because the mean of its divisors is an integer number (4051712).

Almost surely, 2^97145444 is an apocalyptic number.

It is an amenable number.

97145444 is an abundant number, since it is smaller than the sum of its proper divisors (97336732).

97145444 is a wasteful number, since it uses less digits than its factorization.

97145444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 1174 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 97145444 is about 9856.2388363919. The cubic root of 97145444 is about 459.6996211614.

It can be divided in two parts, 97 and 145444, that added together give a palindrome (145541).

The spelling of 97145444 in words is "ninety-seven million, one hundred forty-five thousand, four hundred forty-four".