1152423155 has 16 divisors (see below), whose sum is σ = 1502474400. Its totient is φ = 843483648.

The previous prime is 1152423143. The next prime is 1152423157. The reversal of 1152423155 is 5513242511.

It is a cyclic number.

It is not a de Polignac number, because 1152423155 - 2²⁶ = 1085314291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1152423157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71105 + ... + 85794.

It is an arithmetic number, because the mean of its divisors is an integer number (93904650).

Almost surely, 2^1152423155 is an apocalyptic number.

1152423155 is a deficient number, since it is larger than the sum of its proper divisors (350051245).

1152423155 is a wasteful number, since it uses less digits than its factorization.

1152423155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157030.

The product of its digits is 6000, while the sum is 29.

The square root of 1152423155 is about 33947.3585864939. The cubic root of 1152423155 is about 1048.4248961174.

Adding to 1152423155 its reverse (5513242511), we get a palindrome (6665665666).

The spelling of 1152423155 in words is "one billion, one hundred fifty-two million, four hundred twenty-three thousand, one hundred fifty-five".