1097155169 has 16 divisors (see below), whose sum is σ = 1225082880. Its totient is φ = 974020560.

The previous prime is 1097155141. The next prime is 1097155181. The reversal of 1097155169 is 9615517901.

It is a cyclic number.

It is not a de Polignac number, because 1097155169 - 2¹² = 1097151073 is a prime.

It is a super-2 number, since 2×1097155169² = 2407498929726837122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1097155109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257942 + ... + 262160.

It is an arithmetic number, because the mean of its divisors is an integer number (76567680).

Almost surely, 2^1097155169 is an apocalyptic number.

It is an amenable number.

1097155169 is a deficient number, since it is larger than the sum of its proper divisors (127927711).

1097155169 is a wasteful number, since it uses less digits than its factorization.

1097155169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4780.

The product of its (nonzero) digits is 85050, while the sum is 44.

The square root of 1097155169 is about 33123.3326976619. The cubic root of 1097155169 is about 1031.3894494790.

It can be divided in two parts, 10 and 97155169, that added together give a palindrome (97155179).

The spelling of 1097155169 in words is "one billion, ninety-seven million, one hundred fifty-five thousand, one hundred sixty-nine".