144502426 has 4 divisors (see below), whose sum is σ = 216753642. Its totient is φ = 72251212.

The previous prime is 144502411. The next prime is 144502441. The reversal of 144502426 is 624205441.

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

It is an interprime number because it is at equal distance from previous prime (144502411) and next prime (144502441).

It can be written as a sum of positive squares in only one way, i.e., 140304025 + 4198401 = 11845^2 + 2049^2 .

It is a super-2 number, since 2×144502426² = 41761902239770952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144502394 and 144502403.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36125605 + ... + 36125608.

Almost surely, 2^144502426 is an apocalyptic number.

144502426 is a deficient number, since it is larger than the sum of its proper divisors (72251216).

144502426 is an equidigital number, since it uses as much as digits as its factorization.

144502426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72251215.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 144502426 is about 12020.9161880449. The cubic root of 144502426 is about 524.7571678193.

Adding to 144502426 its reverse (624205441), we get a palindrome (768707867).

The spelling of 144502426 in words is "one hundred forty-four million, five hundred two thousand, four hundred twenty-six".