1147497120 has 576 divisors, whose sum is σ = 4981616640. Its totient is φ = 233625600.

The previous prime is 1147497119. The next prime is 1147497149. The reversal of 1147497120 is 217947411.

1147497120 is a `hidden beast` number, since 1 + 1 + 47 + 497 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8759455 + ... + 8759585.

It is an arithmetic number, because the mean of its divisors is an integer number (8648640).

Almost surely, 2^1147497120 is an apocalyptic number.

1147497120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1147497120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2490808320).

1147497120 is an abundant number, since it is smaller than the sum of its proper divisors (3834119520).

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

1147497120 is a wasteful number, since it uses less digits than its factorization.

1147497120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 1147497120 is about 33874.7268623675. The cubic root of 1147497120 is about 1046.9289311728.

It can be divided in two parts, 11 and 47497120, that added together give a triangular number (47497131 = T₉₇₄₆).

The spelling of 1147497120 in words is "one billion, one hundred forty-seven million, four hundred ninety-seven thousand, one hundred twenty".