144453146 has 4 divisors (see below), whose sum is σ = 216679722. Its totient is φ = 72226572.

The previous prime is 144453107. The next prime is 144453151. The reversal of 144453146 is 641354441.

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., 128572921 + 15880225 = 11339^2 + 3985^2 .

It is a super-2 number, since 2×144453146² = 41733422778594632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36113285 + ... + 36113288.

Almost surely, 2^144453146 is an apocalyptic number.

144453146 is a deficient number, since it is larger than the sum of its proper divisors (72226576).

144453146 is an equidigital number, since it uses as much as digits as its factorization.

144453146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72226575.

The product of its digits is 23040, while the sum is 32.

The square root of 144453146 is about 12018.8662526879. The cubic root of 144453146 is about 524.6975079824.

The spelling of 144453146 in words is "one hundred forty-four million, four hundred fifty-three thousand, one hundred forty-six".