145493544 has 48 divisors (see below), whose sum is σ = 423122400. Its totient is φ = 41569248.

The previous prime is 145493473. The next prime is 145493549. The reversal of 145493544 is 445394541.

It is not an unprimeable number, because it can be changed into a prime (145493549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60684 + ... + 63035.

It is an arithmetic number, because the mean of its divisors is an integer number (8815050).

Almost surely, 2^145493544 is an apocalyptic number.

145493544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145493544 is an abundant number, since it is smaller than the sum of its proper divisors (277628856).

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

145493544 is a wasteful number, since it uses less digits than its factorization.

145493544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123742 (or 123731 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 145493544 is about 12062.0704690364. The cubic root of 145493544 is about 525.9541758670.

The spelling of 145493544 in words is "one hundred forty-five million, four hundred ninety-three thousand, five hundred forty-four".