145585297850 has 24 divisors (see below), whose sum is σ = 286717400028. Its totient is φ = 54808582400.

The previous prime is 145585297841. The next prime is 145585297859. The reversal of 145585297850 is 58792585541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (145585297841) and next prime (145585297859).

It can be written as a sum of positive squares in 6 ways, for example, as 110720566009 + 34864731841 = 332747^2 + 186721^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 145585297850.

It is not an unprimeable number, because it can be changed into a prime (145585297859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85637561 + ... + 85639260.

Almost surely, 2^145585297850 is an apocalyptic number.

145585297850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145585297850 is a deficient number, since it is larger than the sum of its proper divisors (141132102178).

145585297850 is a wasteful number, since it uses less digits than its factorization.

145585297850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171276850 (or 171276845 counting only the distinct ones).

The product of its (nonzero) digits is 20160000, while the sum is 59.

The spelling of 145585297850 in words is "one hundred forty-five billion, five hundred eighty-five million, two hundred ninety-seven thousand, eight hundred fifty".