2153700 has 54 divisors (see below), whose sum is σ = 6753474. Its totient is φ = 574080.

The previous prime is 2153699. The next prime is 2153717. The reversal of 2153700 is 73512.

2153700 = T₂₅₅ + T₂₅₆ + ... + T₃₀₈.

It can be written as a sum of positive squares in 3 ways, for example, as 10404 + 2143296 = 102^2 + 1464^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 297 + ... + 2096.

2^2153700 is an apocalyptic number.

2153700 is a gapful number since it is divisible by the number (20) 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 2153700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3376737).

2153700 is an abundant number, since it is smaller than the sum of its proper divisors (4599774).

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

2153700 is a wasteful number, since it uses less digits than its factorization.

2153700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413 (or 2403 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 2153700 is about 1467.5489770362. The cubic root of 2153700 is about 129.1402836622.

The spelling of 2153700 in words is "two million, one hundred fifty-three thousand, seven hundred".