997152030 has 96 divisors (see below), whose sum is σ = 2972908224. Its totient is φ = 227155968.

The previous prime is 997152019. The next prime is 997152043. The reversal of 997152030 is 30251799.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 197214 + ... + 202206.

It is an arithmetic number, because the mean of its divisors is an integer number (30967794).

Almost surely, 2^997152030 is an apocalyptic number.

997152030 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 997152030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1486454112).

997152030 is an abundant number, since it is smaller than the sum of its proper divisors (1975756194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

997152030 is a wasteful number, since it uses less digits than its factorization.

997152030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330 (or 5327 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 997152030 is about 31577.7141351302. The cubic root of 997152030 is about 999.0497740233.

It can be divided in two parts, 9971 and 52030, that added together give a square (62001 = 249²).

The spelling of 997152030 in words is "nine hundred ninety-seven million, one hundred fifty-two thousand, thirty".