2153736 has 96 divisors (see below), whose sum is σ = 6588000. Its totient is φ = 651456.

The previous prime is 2153729. The next prime is 2153737. The reversal of 2153736 is 6373512.

2153736 = T₁₂₉ + T₁₃₀ + ... + T₂₄₆.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2153737) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36475 + ... + 36533.

It is an arithmetic number, because the mean of its divisors is an integer number (68625).

2^2153736 is an apocalyptic number.

2153736 is a gapful number since it is divisible by the number (26) 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 2153736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3294000).

2153736 is an abundant number, since it is smaller than the sum of its proper divisors (4434264).

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

2153736 is a wasteful number, since it uses less digits than its factorization.

2153736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 77 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 2153736 is about 1467.5612423337. The cubic root of 2153736 is about 129.1410032029.

The spelling of 2153736 in words is "two million, one hundred fifty-three thousand, seven hundred thirty-six".