81614350 has 24 divisors (see below), whose sum is σ = 158405040. Its totient is φ = 31225920.

The previous prime is 81614317. The next prime is 81614353. The reversal of 81614350 is 5341618.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81614353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34335 + ... + 36634.

It is an arithmetic number, because the mean of its divisors is an integer number (6600210).

Almost surely, 2^81614350 is an apocalyptic number.

81614350 is a deficient number, since it is larger than the sum of its proper divisors (76790690).

81614350 is a wasteful number, since it uses less digits than its factorization.

81614350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71004 (or 70999 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 81614350 is about 9034.0660834422. The cubic root of 81614350 is about 433.7660011205.

Adding to 81614350 its reverse (5341618), we get a palindrome (86955968).

The spelling of 81614350 in words is "eighty-one million, six hundred fourteen thousand, three hundred fifty".