1072157 has 2 divisors, whose sum is σ = 1072158. Its totient is φ = 1072156.

The previous prime is 1072147. The next prime is 1072163. The reversal of 1072157 is 7512701.

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., 894916 + 177241 = 946^2 + 421^2 .

It is a cyclic number.

It is not a de Polignac number, because 1072157 - 2¹² = 1068061 is a prime.

It is a super-2 number, since 2×1072157² = 2299041265298, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1072147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536078 + 536079.

It is an arithmetic number, because the mean of its divisors is an integer number (536079).

2^1072157 is an apocalyptic number.

It is an amenable number.

1072157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072157 is an equidigital number, since it uses as much as digits as its factorization.

1072157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 1072157 is about 1035.4501436573. The cubic root of 1072157 is about 102.3495949947.

Adding to 1072157 its reverse (7512701), we get a palindrome (8584858).

The spelling of 1072157 in words is "one million, seventy-two thousand, one hundred fifty-seven".