145811046 has 16 divisors (see below), whose sum is σ = 291901104. Its totient is φ = 48557184.

The previous prime is 145811033. The next prime is 145811051. The reversal of 145811046 is 640118541.

It is a super-2 number, since 2×145811046² = 42521722271228232, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 4495 + ... + 17658.

It is an arithmetic number, because the mean of its divisors is an integer number (18243819).

Almost surely, 2^145811046 is an apocalyptic number.

145811046 is an abundant number, since it is smaller than the sum of its proper divisors (146090058).

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

145811046 is a wasteful number, since it uses less digits than its factorization.

145811046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23255.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 145811046 is about 12075.2244699633. The cubic root of 145811046 is about 526.3364841887.

Adding to 145811046 its reverse (640118541), we get a palindrome (785929587).

The spelling of 145811046 in words is "one hundred forty-five million, eight hundred eleven thousand, forty-six".