1210501 has 4 divisors (see below), whose sum is σ = 1214752. Its totient is φ = 1206252.

The previous prime is 1210499. The next prime is 1210523. The reversal of 1210501 is 1050121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1050121 = 47 ⋅22343.

It is a cyclic number.

It is not a de Polignac number, because 1210501 - 2¹ = 1210499 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210541) 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, 1665 + ... + 2278.

It is an arithmetic number, because the mean of its divisors is an integer number (303688).

2^1210501 is an apocalyptic number.

It is an amenable number.

1210501 is a deficient number, since it is larger than the sum of its proper divisors (4251).

1210501 is an equidigital number, since it uses as much as digits as its factorization.

1210501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 1210501 is about 1100.2277037050. The cubic root of 1210501 is about 106.5749287195.

Adding to 1210501 its reverse (1050121), we get a palindrome (2260622).

It can be divided in two parts, 1210 and 501, that added together give a triangular number (1711 = T₅₈).

The spelling of 1210501 in words is "one million, two hundred ten thousand, five hundred one".