1135401831 has 24 divisors (see below), whose sum is σ = 1812002400. Its totient is φ = 681432576.

The previous prime is 1135401821. The next prime is 1135401853. The reversal of 1135401831 is 1381045311.

1135401831 is a `hidden beast` number, since 113 + 540 + 1 + 8 + 3 + 1 = 666.

It is not a de Polignac number, because 1135401831 - 2⁷ = 1135401703 is a prime.

It is a super-2 number, since 2×1135401831² = 2578274635676305122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1135401795 and 1135401804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135401811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157806 + ... + 164843.

It is an arithmetic number, because the mean of its divisors is an integer number (75500100).

Almost surely, 2^1135401831 is an apocalyptic number.

1135401831 is a deficient number, since it is larger than the sum of its proper divisors (676600569).

1135401831 is a wasteful number, since it uses less digits than its factorization.

1135401831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322695 (or 322692 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1135401831 is about 33695.7242242988. The cubic root of 1135401831 is about 1043.2375168693.

The spelling of 1135401831 in words is "one billion, one hundred thirty-five million, four hundred one thousand, eight hundred thirty-one".