80145450 has 240 divisors, whose sum is σ = 278714304. Its totient is φ = 16588800.

The previous prime is 80145427. The next prime is 80145469. The reversal of 80145450 is 5454108.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 311722 + ... + 311978.

Almost surely, 2^80145450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80145450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139357152).

80145450 is an abundant number, since it is smaller than the sum of its proper divisors (198568854).

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

80145450 is a wasteful number, since it uses less digits than its factorization.

80145450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 80145450 is about 8952.3991197891. The cubic root of 80145450 is about 431.1479153451.

Adding to 80145450 its reverse (5454108), we get a palindrome (85599558).

It can be divided in two parts, 80 and 145450, that added together give a triangular number (145530 = T₅₃₉).

The spelling of 80145450 in words is "eighty million, one hundred forty-five thousand, four hundred fifty".