43013100 has 144 divisors (see below), whose sum is σ = 137803680. Its totient is φ = 10291200.

The previous prime is 43013099. The next prime is 43013101. The reversal of 43013100 is 131034.

It is an interprime number because it is at equal distance from previous prime (43013099) and next prime (43013101).

It is a super-2 number, since 2×43013100² = 3700253543220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (43013101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 159766 + ... + 160034.

It is an arithmetic number, because the mean of its divisors is an integer number (956970).

Almost surely, 2^43013100 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 43013100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68901840).

43013100 is an abundant number, since it is smaller than the sum of its proper divisors (94790580).

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

43013100 is a wasteful number, since it uses less digits than its factorization.

43013100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 43013100 is about 6558.4373138729. The cubic root of 43013100 is about 350.3753795695.

Adding to 43013100 its reverse (131034), we get a palindrome (43144134).

It can be divided in two parts, 430 and 13100, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 43013100 in words is "forty-three million, thirteen thousand, one hundred".