146111240 has 64 divisors (see below), whose sum is σ = 361368000. Its totient is φ = 52727040.

The previous prime is 146111233. The next prime is 146111257. The reversal of 146111240 is 42111641.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 15 ways as a sum of consecutive naturals, for example, 59966 + ... + 62354.

It is an arithmetic number, because the mean of its divisors is an integer number (5646375).

Almost surely, 2^146111240 is an apocalyptic number.

146111240 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 146111240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180684000).

146111240 is an abundant number, since it is smaller than the sum of its proper divisors (215256760).

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

146111240 is a wasteful number, since it uses less digits than its factorization.

146111240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550 (or 2546 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 146111240 is about 12087.6482410765. The cubic root of 146111240 is about 526.6974416313.

Adding to 146111240 its reverse (42111641), we get a palindrome (188222881).

It can be divided in two parts, 14611 and 1240, that added together give a palindrome (15851).

The spelling of 146111240 in words is "one hundred forty-six million, one hundred eleven thousand, two hundred forty".