1210401 has 6 divisors (see below), whose sum is σ = 1748370. Its totient is φ = 806928.

The previous prime is 1210399. The next prime is 1210403. The reversal of 1210401 is 1040121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1210399) and next prime (1210403).

It can be written as a sum of positive squares in only one way, i.e., 1134225 + 76176 = 1065^2 + 276^2 .

It is not a de Polignac number, because 1210401 - 2¹ = 1210399 is a prime.

It is a super-3 number, since 3×1210401³ = 5319968688216333603, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 134489 = 1210401 / (1 + 2 + 1 + 0 + 4 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (1210403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67236 + ... + 67253.

It is an arithmetic number, because the mean of its divisors is an integer number (291395).

2^1210401 is an apocalyptic number.

It is an amenable number.

1210401 is a deficient number, since it is larger than the sum of its proper divisors (537969).

1210401 is a wasteful number, since it uses less digits than its factorization.

1210401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134495 (or 134492 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1210401 is about 1100.1822576283. The cubic root of 1210401 is about 106.5719939054.

Adding to 1210401 its reverse (1040121), we get a palindrome (2250522).

The spelling of 1210401 in words is "one million, two hundred ten thousand, four hundred one".