81053962 has 32 divisors (see below), whose sum is σ = 140428800. Its totient is φ = 34700400.

The previous prime is 81053953. The next prime is 81053963. The reversal of 81053962 is 26935018.

It is not an unprimeable number, because it can be changed into a prime (81053963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87739 + ... + 88657.

It is an arithmetic number, because the mean of its divisors is an integer number (4388400).

Almost surely, 2^81053962 is an apocalyptic number.

81053962 is a deficient number, since it is larger than the sum of its proper divisors (59374838).

81053962 is a wasteful number, since it uses less digits than its factorization.

81053962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 81053962 is about 9002.9973897586. The cubic root of 81053962 is about 432.7709320738.

The spelling of 81053962 in words is "eighty-one million, fifty-three thousand, nine hundred sixty-two".