2153747 has 4 divisors (see below), whose sum is σ = 2280456. Its totient is φ = 2027040.

The previous prime is 2153737. The next prime is 2153773. The reversal of 2153747 is 7473512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2153747 - 2⁸ = 2153491 is a prime.

It is a super-2 number, since 2×2153747² = 9277252280018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63329 + ... + 63362.

It is an arithmetic number, because the mean of its divisors is an integer number (570114).

2^2153747 is an apocalyptic number.

2153747 is a deficient number, since it is larger than the sum of its proper divisors (126709).

2153747 is a wasteful number, since it uses less digits than its factorization.

2153747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126708.

The product of its digits is 5880, while the sum is 29.

The square root of 2153747 is about 1467.5649900430. The cubic root of 2153747 is about 129.1412230610.

The spelling of 2153747 in words is "two million, one hundred fifty-three thousand, seven hundred forty-seven".