1131401464 has 64 divisors (see below), whose sum is σ = 2278368000. Its totient is φ = 525507840.

The previous prime is 1131401407. The next prime is 1131401477. The reversal of 1131401464 is 4641041311.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 965599 + ... + 966769.

It is an arithmetic number, because the mean of its divisors is an integer number (35599500).

Almost surely, 2^1131401464 is an apocalyptic number.

It is an amenable number.

1131401464 is an abundant number, since it is smaller than the sum of its proper divisors (1146966536).

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

1131401464 is a wasteful number, since it uses less digits than its factorization.

1131401464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348 (or 1344 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1131401464 is about 33636.3116884120. The cubic root of 1131401464 is about 1042.0108604421.

Adding to 1131401464 its reverse (4641041311), we get a palindrome (5772442775).

The spelling of 1131401464 in words is "one billion, one hundred thirty-one million, four hundred one thousand, four hundred sixty-four".