145544121207 has 24 divisors (see below), whose sum is σ = 213056747904. Its totient is φ = 95728170384.

The previous prime is 145544121167. The next prime is 145544121209. The reversal of 145544121207 is 702121445541.

145544121207 is a `hidden beast` number, since 1 + 4 + 5 + 5 + 441 + 2 + 1 + 207 = 666.

It is not a de Polignac number, because 145544121207 - 2¹⁸ = 145543859063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145544121209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 409068 + ... + 677070.

It is an arithmetic number, because the mean of its divisors is an integer number (8877364496).

Almost surely, 2^145544121207 is an apocalyptic number.

145544121207 is a deficient number, since it is larger than the sum of its proper divisors (67512626697).

145544121207 is a wasteful number, since it uses less digits than its factorization.

145544121207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268819 (or 268816 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

Adding to 145544121207 its reverse (702121445541), we get a palindrome (847665566748).

The spelling of 145544121207 in words is "one hundred forty-five billion, five hundred forty-four million, one hundred twenty-one thousand, two hundred seven".