145791810 has 24 divisors (see below), whose sum is σ = 379058940. Its totient is φ = 38877792.

The previous prime is 145791797. The next prime is 145791827. The reversal of 145791810 is 18197541.

145791810 is a `hidden beast` number, since 1 + 4 + 579 + 1 + 81 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 123010281 + 22781529 = 11091^2 + 4773^2 .

It is a super-2 number, since 2×145791810² = 42510503726152200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 809865 + ... + 810044.

Almost surely, 2^145791810 is an apocalyptic number.

145791810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145791810 is an abundant number, since it is smaller than the sum of its proper divisors (233267130).

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

145791810 is a wasteful number, since it uses less digits than its factorization.

145791810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619922 (or 1619919 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 145791810 is about 12074.4279367596. The cubic root of 145791810 is about 526.3133376710.

The spelling of 145791810 in words is "one hundred forty-five million, seven hundred ninety-one thousand, eight hundred ten".