145431460 has 48 divisors (see below), whose sum is σ = 319072320. Its totient is φ = 55624320.

The previous prime is 145431443. The next prime is 145431463. The reversal of 145431460 is 64134541.

It is not an unprimeable number, because it can be changed into a prime (145431463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41995 + ... + 45325.

It is an arithmetic number, because the mean of its divisors is an integer number (6647340).

Almost surely, 2^145431460 is an apocalyptic number.

145431460 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 145431460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159536160).

145431460 is an abundant number, since it is smaller than the sum of its proper divisors (173640860).

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

145431460 is a wasteful number, since it uses less digits than its factorization.

145431460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436 (or 3434 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 145431460 is about 12059.4966727472. The cubic root of 145431460 is about 525.8793547128.

The spelling of 145431460 in words is "one hundred forty-five million, four hundred thirty-one thousand, four hundred sixty".