145436446 has 4 divisors (see below), whose sum is σ = 218154672. Its totient is φ = 72718222.

The previous prime is 145436443. The next prime is 145436453. The reversal of 145436446 is 644634541.

145436446 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×145436446² = 42303519650221832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145436443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36359110 + ... + 36359113.

It is an arithmetic number, because the mean of its divisors is an integer number (54538668).

Almost surely, 2^145436446 is an apocalyptic number.

145436446 is a deficient number, since it is larger than the sum of its proper divisors (72718226).

145436446 is an equidigital number, since it uses as much as digits as its factorization.

145436446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72718225.

The product of its digits is 138240, while the sum is 37.

The square root of 145436446 is about 12059.7033960210. The cubic root of 145436446 is about 525.8853644269.

The spelling of 145436446 in words is "one hundred forty-five million, four hundred thirty-six thousand, four hundred forty-six".