145156980 has 48 divisors (see below), whose sum is σ = 409429440. Its totient is φ = 38423808.

The previous prime is 145156967. The next prime is 145156981. The reversal of 145156980 is 89651541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145156981) 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, 610 + ... + 17049.

It is an arithmetic number, because the mean of its divisors is an integer number (8529780).

Almost surely, 2^145156980 is an apocalyptic number.

145156980 is a gapful number since it is divisible by the number (10) 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 145156980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204714720).

145156980 is an abundant number, since it is smaller than the sum of its proper divisors (264272460).

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

145156980 is a wasteful number, since it uses less digits than its factorization.

145156980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17808 (or 17806 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 145156980 is about 12048.1110552651. Note that the first 3 decimals coincide. The cubic root of 145156980 is about 525.5483069706.

The spelling of 145156980 in words is "one hundred forty-five million, one hundred fifty-six thousand, nine hundred eighty".