145452276 has 72 divisors (see below), whose sum is σ = 387825984. Its totient is φ = 45872640.

The previous prime is 145452257. The next prime is 145452301. The reversal of 145452276 is 672254541.

It is a happy number.

145452276 is a `hidden beast` number, since 14 + 54 + 522 + 76 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 145452276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79411 + ... + 81221.

It is an arithmetic number, because the mean of its divisors is an integer number (5386472).

Almost surely, 2^145452276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145452276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193912992).

145452276 is an abundant number, since it is smaller than the sum of its proper divisors (242373708).

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

145452276 is a wasteful number, since it uses less digits than its factorization.

145452276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941 (or 1936 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 145452276 is about 12060.3596961285. The cubic root of 145452276 is about 525.9044436960.

The spelling of 145452276 in words is "one hundred forty-five million, four hundred fifty-two thousand, two hundred seventy-six".