1111623497 has 2 divisors, whose sum is σ = 1111623498. Its totient is φ = 1111623496.

The previous prime is 1111623467. The next prime is 1111623551. The reversal of 1111623497 is 7943261111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 812022016 + 299601481 = 28496^2 + 17309^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111623497 - 2⁶ = 1111623433 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111623407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555811748 + 555811749.

It is an arithmetic number, because the mean of its divisors is an integer number (555811749).

Almost surely, 2^1111623497 is an apocalyptic number.

It is an amenable number.

1111623497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111623497 is an equidigital number, since it uses as much as digits as its factorization.

1111623497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 35.

The square root of 1111623497 is about 33341.0182358008. The cubic root of 1111623497 is about 1035.9033543934.

The spelling of 1111623497 in words is "one billion, one hundred eleven million, six hundred twenty-three thousand, four hundred ninety-seven".