145945464 has 128 divisors (see below), whose sum is σ = 437322240. Its totient is φ = 39716352.

The previous prime is 145945463. The next prime is 145945477. The reversal of 145945464 is 464549541.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145945463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329227 + ... + 329669.

It is an arithmetic number, because the mean of its divisors is an integer number (3416580).

Almost surely, 2^145945464 is an apocalyptic number.

145945464 is a gapful number since it is divisible by the number (14) 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 145945464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218661120).

145945464 is an abundant number, since it is smaller than the sum of its proper divisors (291376776).

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

145945464 is a wasteful number, since it uses less digits than its factorization.

145945464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 545 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

The square root of 145945464 is about 12080.7890470780. The cubic root of 145945464 is about 526.4981714551.

The spelling of 145945464 in words is "one hundred forty-five million, nine hundred forty-five thousand, four hundred sixty-four".