1156672120 has 32 divisors (see below), whose sum is σ = 2739488400. Its totient is φ = 438317568.

The previous prime is 1156672109. The next prime is 1156672123. The reversal of 1156672120 is 212766511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156672123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760209 + ... + 761728.

Almost surely, 2^1156672120 is an apocalyptic number.

1156672120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1156672120 is an abundant number, since it is smaller than the sum of its proper divisors (1582816280).

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

1156672120 is a wasteful number, since it uses less digits than its factorization.

1156672120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521967 (or 1521963 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 1156672120 is about 34009.8826813619. The cubic root of 1156672120 is about 1049.7118241667.

The spelling of 1156672120 in words is "one billion, one hundred fifty-six million, six hundred seventy-two thousand, one hundred twenty".