81037010 has 16 divisors (see below), whose sum is σ = 145972800. Its totient is φ = 32391216.

The previous prime is 81036997. The next prime is 81037091. The reversal of 81037010 is 1073018.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19931 + ... + 23649.

It is an arithmetic number, because the mean of its divisors is an integer number (9123300).

Almost surely, 2^81037010 is an apocalyptic number.

81037010 is a deficient number, since it is larger than the sum of its proper divisors (64935790).

81037010 is a wasteful number, since it uses less digits than its factorization.

81037010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5905.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 81037010 is about 9002.0558762985. The cubic root of 81037010 is about 432.7407593996.

The spelling of 81037010 in words is "eighty-one million, thirty-seven thousand, ten".