2147501 has 2 divisors, whose sum is σ = 2147502. Its totient is φ = 2147500.

The previous prime is 2147489. The next prime is 2147503. The reversal of 2147501 is 1057412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1755625 + 391876 = 1325^2 + 626^2 .

It is a cyclic number.

It is not a de Polignac number, because 2147501 - 2¹⁰ = 2146477 is a prime.

It is a super-2 number, since 2×2147501² = 9223521090002, which contains 22 as substring.

Together with 2147503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2147503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073750 + 1073751.

It is an arithmetic number, because the mean of its divisors is an integer number (1073751).

2^2147501 is an apocalyptic number.

It is an amenable number.

2147501 is a deficient number, since it is larger than the sum of its proper divisors (1).

2147501 is an equidigital number, since it uses as much as digits as its factorization.

2147501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 2147501 is about 1465.4354301708. The cubic root of 2147501 is about 129.0162629978.

The spelling of 2147501 in words is "two million, one hundred forty-seven thousand, five hundred one".