81410562 has 16 divisors (see below), whose sum is σ = 180912480. Its totient is φ = 27136836.

The previous prime is 81410531. The next prime is 81410587. The reversal of 81410562 is 26501418.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 753748 + ... + 753855.

It is an arithmetic number, because the mean of its divisors is an integer number (11307030).

Almost surely, 2^81410562 is an apocalyptic number.

81410562 is an abundant number, since it is smaller than the sum of its proper divisors (99501918).

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

81410562 is a wasteful number, since it uses less digits than its factorization.

81410562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507614 (or 1507608 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 81410562 is about 9022.7801702136. The cubic root of 81410562 is about 433.4046676779.

The spelling of 81410562 in words is "eighty-one million, four hundred ten thousand, five hundred sixty-two".