1155125383 has 4 divisors (see below), whose sum is σ = 1181988808. Its totient is φ = 1128261960.

The previous prime is 1155125371. The next prime is 1155125399. The reversal of 1155125383 is 3835215511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1155125383 - 2⁵ = 1155125351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155125683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13431648 + ... + 13431733.

It is an arithmetic number, because the mean of its divisors is an integer number (295497202).

Almost surely, 2^1155125383 is an apocalyptic number.

1155125383 is a deficient number, since it is larger than the sum of its proper divisors (26863425).

1155125383 is an equidigital number, since it uses as much as digits as its factorization.

1155125383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26863424.

The product of its digits is 18000, while the sum is 34.

The square root of 1155125383 is about 33987.1355515583. The cubic root of 1155125383 is about 1049.2437132966.

The spelling of 1155125383 in words is "one billion, one hundred fifty-five million, one hundred twenty-five thousand, three hundred eighty-three".