81035654 has 16 divisors (see below), whose sum is σ = 139104000. Its totient is φ = 34683144.

The previous prime is 81035609. The next prime is 81035659. The reversal of 81035654 is 45653018.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 81035654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81035659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8297 + ... + 15195.

It is an arithmetic number, because the mean of its divisors is an integer number (8694000).

Almost surely, 2^81035654 is an apocalyptic number.

81035654 is a deficient number, since it is larger than the sum of its proper divisors (58068346).

81035654 is a wasteful number, since it uses less digits than its factorization.

81035654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7747.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 81035654 is about 9001.9805598546. The cubic root of 81035654 is about 432.7383456887.

The spelling of 81035654 in words is "eighty-one million, thirty-five thousand, six hundred fifty-four".