145534290 has 96 divisors (see below), whose sum is σ = 390833856. Its totient is φ = 34394880.

The previous prime is 145534261. The next prime is 145534307. The reversal of 145534290 is 92435541.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 926892 + ... + 927048.

It is an arithmetic number, because the mean of its divisors is an integer number (4071186).

Almost surely, 2^145534290 is an apocalyptic number.

145534290 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 145534290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195416928).

145534290 is an abundant number, since it is smaller than the sum of its proper divisors (245299566).

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

145534290 is a wasteful number, since it uses less digits than its factorization.

145534290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 145534290 is about 12063.7593643109. The cubic root of 145534290 is about 526.0032697489.

It can be divided in two parts, 145 and 534290, that added together give a palindrome (534435).

The spelling of 145534290 in words is "one hundred forty-five million, five hundred thirty-four thousand, two hundred ninety".