1140101531 has 4 divisors (see below), whose sum is σ = 1140218064. Its totient is φ = 1139985000.

The previous prime is 1140101519. The next prime is 1140101579. The reversal of 1140101531 is 1351010411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140101531 is a prime.

It is a super-2 number, since 2×1140101531² = 2599663001977087922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140101731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42095 + ... + 63656.

It is an arithmetic number, because the mean of its divisors is an integer number (285054516).

Almost surely, 2^1140101531 is an apocalyptic number.

1140101531 is a deficient number, since it is larger than the sum of its proper divisors (116533).

1140101531 is a wasteful number, since it uses less digits than its factorization.

1140101531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116532.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 1140101531 is about 33765.3895431402. The cubic root of 1140101531 is about 1044.6749386919.

Adding to 1140101531 its reverse (1351010411), we get a palindrome (2491111942).

The spelling of 1140101531 in words is "one billion, one hundred forty million, one hundred one thousand, five hundred thirty-one".