1154020052 has 6 divisors (see below), whose sum is σ = 2019535098. Its totient is φ = 577010024.

The previous prime is 1154020051. The next prime is 1154020069. The reversal of 1154020052 is 2500204511.

It can be written as a sum of positive squares in only one way, i.e., 1003368976 + 150651076 = 31676^2 + 12274^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154020051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144252503 + ... + 144252510.

It is an arithmetic number, because the mean of its divisors is an integer number (336589183).

Almost surely, 2^1154020052 is an apocalyptic number.

It is an amenable number.

1154020052 is a deficient number, since it is larger than the sum of its proper divisors (865515046).

1154020052 is a wasteful number, since it uses less digits than its factorization.

1154020052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288505017 (or 288505015 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1154020052 is about 33970.8706394169. The cubic root of 1154020052 is about 1048.9089352892.

Adding to 1154020052 its reverse (2500204511), we get a palindrome (3654224563).

The spelling of 1154020052 in words is "one billion, one hundred fifty-four million, twenty thousand, fifty-two".