145446346 has 4 divisors (see below), whose sum is σ = 218169522. Its totient is φ = 72723172.

The previous prime is 145446331. The next prime is 145446377. The reversal of 145446346 is 643644541.

145446346 is digitally balanced in base 2, 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 can be written as a sum of positive squares in only one way, i.e., 81270225 + 64176121 = 9015^2 + 8011^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36361585 + ... + 36361588.

Almost surely, 2^145446346 is an apocalyptic number.

145446346 is a deficient number, since it is larger than the sum of its proper divisors (72723176).

145446346 is an equidigital number, since it uses as much as digits as its factorization.

145446346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72723175.

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

The square root of 145446346 is about 12060.1138468922. The cubic root of 145446346 is about 525.8972966651.

The spelling of 145446346 in words is "one hundred forty-five million, four hundred forty-six thousand, three hundred forty-six".