1097272499 has 4 divisors (see below), whose sum is σ = 1103334960. Its totient is φ = 1091210040.

The previous prime is 1097272489. The next prime is 1097272541. The reversal of 1097272499 is 9942727901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9942727901 = 1031 ⋅9643771.

It is a cyclic number.

It is not a de Polignac number, because 1097272499 - 2⁸ = 1097272243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1097272469) 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, 3030959 + ... + 3031320.

It is an arithmetic number, because the mean of its divisors is an integer number (275833740).

Almost surely, 2^1097272499 is an apocalyptic number.

1097272499 is a deficient number, since it is larger than the sum of its proper divisors (6062461).

1097272499 is an equidigital number, since it uses as much as digits as its factorization.

1097272499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6062460.

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 1097272499 is about 33125.1037583281. The cubic root of 1097272499 is about 1031.4262138353.

The spelling of 1097272499 in words is "one billion, ninety-seven million, two hundred seventy-two thousand, four hundred ninety-nine".