1097055047 has 4 divisors (see below), whose sum is σ = 1196787336. Its totient is φ = 997322760.

The previous prime is 1097055013. The next prime is 1097055061. The reversal of 1097055047 is 7405507901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1097055047 - 2¹² = 1097050951 is a prime.

It is a super-2 number, since 2×1097055047² = 2407059552296344418, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1097055047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097055097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49866128 + ... + 49866149.

It is an arithmetic number, because the mean of its divisors is an integer number (299196834).

Almost surely, 2^1097055047 is an apocalyptic number.

1097055047 is a deficient number, since it is larger than the sum of its proper divisors (99732289).

1097055047 is an equidigital number, since it uses as much as digits as its factorization.

1097055047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99732288.

The product of its (nonzero) digits is 44100, while the sum is 38.

The square root of 1097055047 is about 33121.8213116368. The cubic root of 1097055047 is about 1031.3580750302.

The spelling of 1097055047 in words is "one billion, ninety-seven million, fifty-five thousand, forty-seven".