1097061729 has 32 divisors (see below), whose sum is σ = 1585858560. Its totient is φ = 672235200.

The previous prime is 1097061701. The next prime is 1097061781. The reversal of 1097061729 is 9271607901.

It is a happy number.

It is not a de Polignac number, because 1097061729 - 2¹⁶ = 1096996193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1097061029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1203784 + ... + 1204694.

It is an arithmetic number, because the mean of its divisors is an integer number (49558080).

Almost surely, 2^1097061729 is an apocalyptic number.

1097061729 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1097061729 is a deficient number, since it is larger than the sum of its proper divisors (488796831).

1097061729 is a wasteful number, since it uses less digits than its factorization.

1097061729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541.

The product of its (nonzero) digits is 47628, while the sum is 42.

The square root of 1097061729 is about 33121.9221815401. The cubic root of 1097061729 is about 1031.3601689758.

The spelling of 1097061729 in words is "one billion, ninety-seven million, sixty-one thousand, seven hundred twenty-nine".