1097245977 has 32 divisors (see below), whose sum is σ = 1591954560. Its totient is φ = 669511680.

The previous prime is 1097245969. The next prime is 1097245987. The reversal of 1097245977 is 7795427901.

It is not a de Polignac number, because 1097245977 - 2³ = 1097245969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (1097245927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 854578 + ... + 855860.

It is an arithmetic number, because the mean of its divisors is an integer number (49748580).

Almost surely, 2^1097245977 is an apocalyptic number.

1097245977 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1097245977 is a deficient number, since it is larger than the sum of its proper divisors (494708583).

1097245977 is a wasteful number, since it uses less digits than its factorization.

1097245977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753.

The product of its (nonzero) digits is 1111320, while the sum is 51.

The square root of 1097245977 is about 33124.7034250874. The cubic root of 1097245977 is about 1031.4179036217.

The spelling of 1097245977 in words is "one billion, ninety-seven million, two hundred forty-five thousand, nine hundred seventy-seven".