145513548 has 144 divisors (see below), whose sum is σ = 405140736. Its totient is φ = 43908480.

The previous prime is 145513517. The next prime is 145513553. The reversal of 145513548 is 845315541.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2171811 + ... + 2171877.

Almost surely, 2^145513548 is an apocalyptic number.

145513548 is a gapful number since it is divisible by the number (18) 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 145513548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202570368).

145513548 is an abundant number, since it is smaller than the sum of its proper divisors (259627188).

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

145513548 is a wasteful number, since it uses less digits than its factorization.

145513548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 199 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 145513548 is about 12062.8996514105. The cubic root of 145513548 is about 525.9782793539.

The spelling of 145513548 in words is "one hundred forty-five million, five hundred thirteen thousand, five hundred forty-eight".