80951140 has 24 divisors (see below), whose sum is σ = 173207160. Its totient is φ = 31769088.

The previous prime is 80951131. The next prime is 80951141. The reversal of 80951140 is 4115908.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7540516 + 73410624 = 2746^2 + 8568^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80951099 and 80951108.

It is not an unprimeable number, because it can be changed into a prime (80951141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37125 + ... + 39244.

It is an arithmetic number, because the mean of its divisors is an integer number (7216965).

Almost surely, 2^80951140 is an apocalyptic number.

It is an amenable number.

80951140 is an abundant number, since it is smaller than the sum of its proper divisors (92256020).

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

80951140 is a wasteful number, since it uses less digits than its factorization.

80951140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76431 (or 76429 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 80951140 is about 8997.2851460871. The cubic root of 80951140 is about 432.5878556752.

The spelling of 80951140 in words is "eighty million, nine hundred fifty-one thousand, one hundred forty".