145242223130 has 32 divisors (see below), whose sum is σ = 268548235920. Its totient is φ = 56516935680.

The previous prime is 145242223097. The next prime is 145242223151. The reversal of 145242223130 is 31322242541.

It can be written as a sum of positive squares in 8 ways, for example, as 37826749081 + 107415474049 = 194491^2 + 327743^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145242223093 and 145242223102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2333210 + ... + 2394650.

Almost surely, 2^145242223130 is an apocalyptic number.

145242223130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145242223130 is a deficient number, since it is larger than the sum of its proper divisors (123306012790).

145242223130 is a wasteful number, since it uses less digits than its factorization.

145242223130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67874.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 145242223130 its reverse (31322242541), we get a palindrome (176564465671).

The spelling of 145242223130 in words is "one hundred forty-five billion, two hundred forty-two million, two hundred twenty-three thousand, one hundred thirty".