97551144 has 24 divisors (see below), whose sum is σ = 264201210. Its totient is φ = 32517024.

The previous prime is 97551143. The next prime is 97551227. The reversal of 97551144 is 44115579.

97551144 is a `hidden beast` number, since 97 + 551 + 14 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 94828644 + 2722500 = 9738^2 + 1650^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 97551099 and 97551108.

It is not an unprimeable number, because it can be changed into a prime (97551143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 677367 + ... + 677510.

Almost surely, 2^97551144 is an apocalyptic number.

It is an amenable number.

97551144 is an abundant number, since it is smaller than the sum of its proper divisors (166650066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97551144 is a wasteful number, since it uses less digits than its factorization.

97551144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354889 (or 1354882 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 97551144 is about 9876.7982666449. The cubic root of 97551144 is about 460.3386667955.

The spelling of 97551144 in words is "ninety-seven million, five hundred fifty-one thousand, one hundred forty-four".