80251145 has 16 divisors (see below), whose sum is σ = 106242192. Its totient is φ = 57815040.

The previous prime is 80251099. The next prime is 80251147. The reversal of 80251145 is 54115208.

It can be written as a sum of positive squares in 8 ways, for example, as 6497401 + 73753744 = 2549^2 + 8588^2 .

It is not a de Polignac number, because 80251145 - 2¹² = 80247049 is a prime.

It is a super-2 number, since 2×80251145² = 12880492547622050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80251147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12392 + ... + 17721.

It is an arithmetic number, because the mean of its divisors is an integer number (6640137).

Almost surely, 2^80251145 is an apocalyptic number.

It is an amenable number.

80251145 is a deficient number, since it is larger than the sum of its proper divisors (25991047).

80251145 is a wasteful number, since it uses less digits than its factorization.

80251145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30172.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 80251145 is about 8958.3003410245. The cubic root of 80251145 is about 431.3373632430.

The spelling of 80251145 in words is "eighty million, two hundred fifty-one thousand, one hundred forty-five".