145409557524 has 48 divisors (see below), whose sum is σ = 423009624576. Its totient is φ = 37768716000.

The previous prime is 145409557523. The next prime is 145409557561. The reversal of 145409557524 is 425755904541.

It is a super-2 number, since 2×145409557524² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145409557523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78683902 + ... + 78685749.

It is an arithmetic number, because the mean of its divisors is an integer number (8812700512).

Almost surely, 2^145409557524 is an apocalyptic number.

145409557524 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145409557524 is an abundant number, since it is smaller than the sum of its proper divisors (277600067052).

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

145409557524 is a wasteful number, since it uses less digits than its factorization.

145409557524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157369676 (or 157369674 counting only the distinct ones).

The product of its (nonzero) digits is 5040000, while the sum is 51.

The spelling of 145409557524 in words is "one hundred forty-five billion, four hundred nine million, five hundred fifty-seven thousand, five hundred twenty-four".