997112501 has 16 divisors (see below), whose sum is σ = 1255471488. Its totient is φ = 769272000.

The previous prime is 997112477. The next prime is 997112503. The reversal of 997112501 is 105211799.

It is not a de Polignac number, because 997112501 - 2⁶ = 997112437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997112503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56330 + ... + 71883.

It is an arithmetic number, because the mean of its divisors is an integer number (78466968).

Almost surely, 2^997112501 is an apocalyptic number.

It is an amenable number.

997112501 is a deficient number, since it is larger than the sum of its proper divisors (258358987).

997112501 is a wasteful number, since it uses less digits than its factorization.

997112501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128332.

The product of its (nonzero) digits is 5670, while the sum is 35.

The square root of 997112501 is about 31577.0882286508. The cubic root of 997112501 is about 999.0365724387.

The spelling of 997112501 in words is "nine hundred ninety-seven million, one hundred twelve thousand, five hundred one".