144400351 has 4 divisors (see below), whose sum is σ = 146378512. Its totient is φ = 142422192.

The previous prime is 144400349. The next prime is 144400357. The reversal of 144400351 is 153004441.

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 144400351 - 2¹ = 144400349 is a prime.

It is a super-2 number, since 2×144400351² = 41702922737846402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144400357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 988971 + ... + 989116.

It is an arithmetic number, because the mean of its divisors is an integer number (36594628).

Almost surely, 2^144400351 is an apocalyptic number.

144400351 is a deficient number, since it is larger than the sum of its proper divisors (1978161).

144400351 is an equidigital number, since it uses as much as digits as its factorization.

144400351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978160.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 144400351 is about 12016.6697133607. The cubic root of 144400351 is about 524.6335777250.

Adding to 144400351 its reverse (153004441), we get a palindrome (297404792).

The spelling of 144400351 in words is "one hundred forty-four million, four hundred thousand, three hundred fifty-one".