11620157 has 2 divisors, whose sum is σ = 11620158. Its totient is φ = 11620156.

The previous prime is 11620121. The next prime is 11620159. The reversal of 11620157 is 75102611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11600836 + 19321 = 3406^2 + 139^2 .

It is a cyclic number.

It is not a de Polignac number, because 11620157 - 2⁸ = 11619901 is a prime.

Together with 11620159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11620159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5810078 + 5810079.

It is an arithmetic number, because the mean of its divisors is an integer number (5810079).

Almost surely, 2^11620157 is an apocalyptic number.

It is an amenable number.

11620157 is a deficient number, since it is larger than the sum of its proper divisors (1).

11620157 is an equidigital number, since it uses as much as digits as its factorization.

11620157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 11620157 is about 3408.8351382840. The cubic root of 11620157 is about 226.5012824251.

Adding to 11620157 its reverse (75102611), we get a palindrome (86722768).

The spelling of 11620157 in words is "eleven million, six hundred twenty thousand, one hundred fifty-seven".