1153020372 has 36 divisors (see below), whose sum is σ = 3129628320. Its totient is φ = 329434224.

The previous prime is 1153020347. The next prime is 1153020373. The reversal of 1153020372 is 2730203511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153020373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 979872 + ... + 981047.

It is an arithmetic number, because the mean of its divisors is an integer number (86934120).

Almost surely, 2^1153020372 is an apocalyptic number.

1153020372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1153020372 is an abundant number, since it is smaller than the sum of its proper divisors (1976607948).

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

1153020372 is a wasteful number, since it uses less digits than its factorization.

1153020372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960940 (or 1960931 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 1153020372 is about 33956.1536691069. The cubic root of 1153020372 is about 1048.6059722667.

Adding to 1153020372 its reverse (2730203511), we get a palindrome (3883223883).

The spelling of 1153020372 in words is "one billion, one hundred fifty-three million, twenty thousand, three hundred seventy-two".