145300554 has 80 divisors (see below), whose sum is σ = 382259328. Its totient is φ = 40380768.

The previous prime is 145300549. The next prime is 145300579. The reversal of 145300554 is 455003541.

It is a super-2 number, since 2×145300554² = 42224501985413832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 40227 + ... + 43689.

Almost surely, 2^145300554 is an apocalyptic number.

145300554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145300554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191129664).

145300554 is an abundant number, since it is smaller than the sum of its proper divisors (236958774).

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

145300554 is a wasteful number, since it uses less digits than its factorization.

145300554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3521 (or 3512 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 145300554 is about 12054.0679440594. The cubic root of 145300554 is about 525.7215222232.

The spelling of 145300554 in words is "one hundred forty-five million, three hundred thousand, five hundred fifty-four".