145103872 has 88 divisors (see below), whose sum is σ = 310685472. Its totient is φ = 67584000.

The previous prime is 145103821. The next prime is 145103911. The reversal of 145103872 is 278301541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1436622 + ... + 1436722.

Almost surely, 2^145103872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145103872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155342736).

145103872 is an abundant number, since it is smaller than the sum of its proper divisors (165581600).

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

145103872 is a wasteful number, since it uses less digits than its factorization.

145103872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 145103872 is about 12045.9068566879. The cubic root of 145103872 is about 525.4842057379.

The spelling of 145103872 in words is "one hundred forty-five million, one hundred three thousand, eight hundred seventy-two".