8401157 has 2 divisors, whose sum is σ = 8401158. Its totient is φ = 8401156.

The previous prime is 8401153. The next prime is 8401193. The reversal of 8401157 is 7511048.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8375236 + 25921 = 2894^2 + 161^2 .

It is a cyclic number.

It is not a de Polignac number, because 8401157 - 2² = 8401153 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8401153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4200578 + 4200579.

It is an arithmetic number, because the mean of its divisors is an integer number (4200579).

Almost surely, 2^8401157 is an apocalyptic number.

It is an amenable number.

8401157 is a deficient number, since it is larger than the sum of its proper divisors (1).

8401157 is an equidigital number, since it uses as much as digits as its factorization.

8401157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 8401157 is about 2898.4749438282. The cubic root of 8401157 is about 203.2886040344.

It can be divided in two parts, 8401 and 157, that added together give a palindrome (8558).

The spelling of 8401157 in words is "eight million, four hundred one thousand, one hundred fifty-seven".