1022604157 has 2 divisors, whose sum is σ = 1022604158. Its totient is φ = 1022604156.

The previous prime is 1022604103. The next prime is 1022604181. The reversal of 1022604157 is 7514062201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 955675396 + 66928761 = 30914^2 + 8181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022604157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022604857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511302078 + 511302079.

It is an arithmetic number, because the mean of its divisors is an integer number (511302079).

Almost surely, 2^1022604157 is an apocalyptic number.

It is an amenable number.

1022604157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022604157 is an equidigital number, since it uses as much as digits as its factorization.

1022604157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1022604157 is about 31978.1825155840. The cubic root of 1022604157 is about 1007.4786493761.

Adding to 1022604157 its reverse (7514062201), we get a palindrome (8536666358).

The spelling of 1022604157 in words is "one billion, twenty-two million, six hundred four thousand, one hundred fifty-seven".