145777012 has 12 divisors (see below), whose sum is σ = 256735780. Its totient is φ = 72423936.

The previous prime is 145777001. The next prime is 145777019. The reversal of 145777012 is 210777541.

It can be written as a sum of positive squares in 2 ways, for example, as 22033636 + 123743376 = 4694^2 + 11124^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145777019) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 115437 + ... + 116692.

Almost surely, 2^145777012 is an apocalyptic number.

It is an amenable number.

145777012 is a deficient number, since it is larger than the sum of its proper divisors (110958768).

145777012 is a wasteful number, since it uses less digits than its factorization.

145777012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232290 (or 232288 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 145777012 is about 12073.8151385550. The cubic root of 145777012 is about 526.2955299759.

The spelling of 145777012 in words is "one hundred forty-five million, seven hundred seventy-seven thousand, twelve".