145217043630 has 96 divisors (see below), whose sum is σ = 381893750784. Its totient is φ = 38281814208.

The previous prime is 145217043623. The next prime is 145217043637. The reversal of 145217043630 is 36340712541.

145217043630 is a `hidden beast` number, since 1 + 4 + 5 + 2 + 17 + 0 + 4 + 3 + 630 = 666.

It is an interprime number because it is at equal distance from previous prime (145217043623) and next prime (145217043637).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145217043637) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5428147 + ... + 5454833.

It is an arithmetic number, because the mean of its divisors is an integer number (3978059904).

Almost surely, 2^145217043630 is an apocalyptic number.

145217043630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145217043630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190946875392).

145217043630 is an abundant number, since it is smaller than the sum of its proper divisors (236676707154).

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

145217043630 is a wasteful number, since it uses less digits than its factorization.

145217043630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27390 (or 27387 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 145217043630 in words is "one hundred forty-five billion, two hundred seventeen million, forty-three thousand, six hundred thirty".