144474131 has 4 divisors (see below), whose sum is σ = 147200112. Its totient is φ = 141748152.

The previous prime is 144474107. The next prime is 144474151. The reversal of 144474131 is 131474441.

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

It is a cyclic number.

It is not a de Polignac number, because 144474131 - 2²² = 140279827 is a prime.

It is a super-2 number, since 2×144474131² = 41745549056410322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144474094 and 144474103.

It is not an unprimeable number, because it can be changed into a prime (144474151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1362911 + ... + 1363016.

It is an arithmetic number, because the mean of its divisors is an integer number (36800028).

Almost surely, 2^144474131 is an apocalyptic number.

144474131 is a deficient number, since it is larger than the sum of its proper divisors (2725981).

144474131 is an equidigital number, since it uses as much as digits as its factorization.

144474131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2725980.

The product of its digits is 5376, while the sum is 29.

The square root of 144474131 is about 12019.7392234607. The cubic root of 144474131 is about 524.7229147074.

The spelling of 144474131 in words is "one hundred forty-four million, four hundred seventy-four thousand, one hundred thirty-one".