1151401 has 2 divisors, whose sum is σ = 1151402. Its totient is φ = 1151400.

The previous prime is 1151399. The next prime is 1151413. The reversal of 1151401 is 1041511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1010025 + 141376 = 1005^2 + 376^2 .

It is an emirp because it is prime and its reverse (1041511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1151401 - 2¹ = 1151399 is a prime.

Together with 1151399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1151431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575700 + 575701.

It is an arithmetic number, because the mean of its divisors is an integer number (575701).

2^1151401 is an apocalyptic number.

It is an amenable number.

1151401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151401 is an equidigital number, since it uses as much as digits as its factorization.

1151401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 1151401 is about 1073.0335502677. The cubic root of 1151401 is about 104.8114833580.

Adding to 1151401 its reverse (1041511), we get a palindrome (2192912).

The spelling of 1151401 in words is "one million, one hundred fifty-one thousand, four hundred one".