145376550 has 144 divisors (see below), whose sum is σ = 436632768. Its totient is φ = 34372800.

The previous prime is 145376527. The next prime is 145376563. The reversal of 145376550 is 55673541.

145376550 is a `hidden beast` number, since 14 + 537 + 65 + 50 = 666.

It is a super-2 number, since 2×145376550² = 42268682579805000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 71 ways as a sum of consecutive naturals, for example, 212509 + ... + 213191.

It is an arithmetic number, because the mean of its divisors is an integer number (3032172).

Almost surely, 2^145376550 is an apocalyptic number.

145376550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145376550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218316384).

145376550 is an abundant number, since it is smaller than the sum of its proper divisors (291256218).

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

145376550 is a wasteful number, since it uses less digits than its factorization.

145376550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 145376550 is about 12057.2198287997. The cubic root of 145376550 is about 525.8131616292.

The spelling of 145376550 in words is "one hundred forty-five million, three hundred seventy-six thousand, five hundred fifty".