1131241749 has 8 divisors (see below), whose sum is σ = 1645442592. Its totient is φ = 685601040.

The previous prime is 1131241603. The next prime is 1131241763. The reversal of 1131241749 is 9471421311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1131241749 - 2¹¹ = 1131239701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 34280053 = 1131241749 / (1 + 1 + 3 + 1 + 2 + 4 + 1 + 7 + 4 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131241249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17139994 + ... + 17140059.

It is an arithmetic number, because the mean of its divisors is an integer number (205680324).

Almost surely, 2^1131241749 is an apocalyptic number.

It is an amenable number.

1131241749 is a deficient number, since it is larger than the sum of its proper divisors (514200843).

1131241749 is a wasteful number, since it uses less digits than its factorization.

1131241749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34280067.

The product of its digits is 6048, while the sum is 33.

The square root of 1131241749 is about 33633.9374590606. The cubic root of 1131241749 is about 1041.9618260950.

The spelling of 1131241749 in words is "one billion, one hundred thirty-one million, two hundred forty-one thousand, seven hundred forty-nine".