145603825938 has 40 divisors (see below), whose sum is σ = 326283579468. Its totient is φ = 48531164256.

The previous prime is 145603825933. The next prime is 145603825993. The reversal of 145603825938 is 839528306541.

145603825938 is a `hidden beast` number, since 1 + 4 + 5 + 603 + 8 + 25 + 9 + 3 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 95612679369 + 49991146569 = 309213^2 + 223587^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (145603825933) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3382720 + ... + 3425492.

Almost surely, 2^145603825938 is an apocalyptic number.

145603825938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

145603825938 is an abundant number, since it is smaller than the sum of its proper divisors (180679753530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145603825938 is a wasteful number, since it uses less digits than its factorization.

145603825938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63800 (or 63791 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 145603825938 in words is "one hundred forty-five billion, six hundred three million, eight hundred twenty-five thousand, nine hundred thirty-eight".