145372520244 has 96 divisors (see below), whose sum is σ = 409570201600. Its totient is φ = 39203637120.

The previous prime is 145372520219. The next prime is 145372520261. The reversal of 145372520244 is 442025273541.

It is a super-2 number, since 2×145372520244² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264462 + ... + 600570.

Almost surely, 2^145372520244 is an apocalyptic number.

145372520244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145372520244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204785100800).

145372520244 is an abundant number, since it is smaller than the sum of its proper divisors (264197681356).

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

145372520244 is a wasteful number, since it uses less digits than its factorization.

145372520244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336413 (or 336411 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 39.

Adding to 145372520244 its reverse (442025273541), we get a palindrome (587397793785).

The spelling of 145372520244 in words is "one hundred forty-five billion, three hundred seventy-two million, five hundred twenty thousand, two hundred forty-four".