145894812 has 48 divisors (see below), whose sum is σ = 390351360. Its totient is φ = 41545152.

The previous prime is 145894789. The next prime is 145894813. The reversal of 145894812 is 218498541.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145894813) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 23889 + ... + 29367.

It is an arithmetic number, because the mean of its divisors is an integer number (8132320).

Almost surely, 2^145894812 is an apocalyptic number.

145894812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145894812 is an abundant number, since it is smaller than the sum of its proper divisors (244456548).

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

145894812 is a wasteful number, since it uses less digits than its factorization.

145894812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5810 (or 5808 counting only the distinct ones).

The product of its digits is 92160, while the sum is 42.

The square root of 145894812 is about 12078.6924789068. The cubic root of 145894812 is about 526.4372553878.

The spelling of 145894812 in words is "one hundred forty-five million, eight hundred ninety-four thousand, eight hundred twelve".