1181372152 has 8 divisors (see below), whose sum is σ = 2215072800. Its totient is φ = 590686072.

The previous prime is 1181372147. The next prime is 1181372201. The reversal of 1181372152 is 2512731811.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1181372152² = 2791280323042222208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73835752 + ... + 73835767.

It is an arithmetic number, because the mean of its divisors is an integer number (276884100).

Almost surely, 2^1181372152 is an apocalyptic number.

It is an amenable number.

1181372152 is a deficient number, since it is larger than the sum of its proper divisors (1033700648).

1181372152 is a wasteful number, since it uses less digits than its factorization.

1181372152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147671525 (or 147671521 counting only the distinct ones).

The product of its digits is 3360, while the sum is 31.

The square root of 1181372152 is about 34371.0947163456. The cubic root of 1181372152 is about 1057.1312462950.

The spelling of 1181372152 in words is "one billion, one hundred eighty-one million, three hundred seventy-two thousand, one hundred fifty-two".