1031155452 has 18 divisors (see below), whose sum is σ = 2606531928. Its totient is φ = 343718472.

The previous prime is 1031155429. The next prime is 1031155457. The reversal of 1031155452 is 2545511301.

1031155452 is a `hidden beast` number, since 1 + 0 + 3 + 115 + 545 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031155457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14321568 + ... + 14321639.

Almost surely, 2^1031155452 is an apocalyptic number.

1031155452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1031155452 is an abundant number, since it is smaller than the sum of its proper divisors (1575376476).

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

1031155452 is a wasteful number, since it uses less digits than its factorization.

1031155452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28643217 (or 28643212 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1031155452 is about 32111.6093025560. The cubic root of 1031155452 is about 1010.2791281584.

Adding to 1031155452 its reverse (2545511301), we get a palindrome (3576666753).

The spelling of 1031155452 in words is "one billion, thirty-one million, one hundred fifty-five thousand, four hundred fifty-two".