81362030 has 8 divisors (see below), whose sum is σ = 146451672. Its totient is φ = 32544808.

The previous prime is 81362027. The next prime is 81362033. The reversal of 81362030 is 3026318.

It is an interprime number because it is at equal distance from previous prime (81362027) and next prime (81362033).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 81361987 and 81362005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81362033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4068092 + ... + 4068111.

It is an arithmetic number, because the mean of its divisors is an integer number (18306459).

Almost surely, 2^81362030 is an apocalyptic number.

81362030 is a deficient number, since it is larger than the sum of its proper divisors (65089642).

81362030 is a wasteful number, since it uses less digits than its factorization.

81362030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8136210.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 81362030 is about 9020.0903543146. The cubic root of 81362030 is about 433.3185274363.

Adding to 81362030 its reverse (3026318), we get a palindrome (84388348).

The spelling of 81362030 in words is "eighty-one million, three hundred sixty-two thousand, thirty".