11401657 has 2 divisors, whose sum is σ = 11401658. Its totient is φ = 11401656.

The previous prime is 11401639. The next prime is 11401667. The reversal of 11401657 is 75610411.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9388096 + 2013561 = 3064^2 + 1419^2 .

It is an emirp because it is prime and its reverse (75610411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11401657 is a prime.

It is not a weakly prime, because it can be changed into another prime (11401667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5700828 + 5700829.

It is an arithmetic number, because the mean of its divisors is an integer number (5700829).

Almost surely, 2^11401657 is an apocalyptic number.

It is an amenable number.

11401657 is a deficient number, since it is larger than the sum of its proper divisors (1).

11401657 is an equidigital number, since it uses as much as digits as its factorization.

11401657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 11401657 is about 3376.6339748335. The cubic root of 11401657 is about 225.0726152452.

The spelling of 11401657 in words is "eleven million, four hundred one thousand, six hundred fifty-seven".