1136140451 has 4 divisors (see below), whose sum is σ = 1136212992. Its totient is φ = 1136067912.

The previous prime is 1136140441. The next prime is 1136140457. The reversal of 1136140451 is 1540416311.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1540416311 = 7 ⋅220059473.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1136140451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1136140451.

It is not an unprimeable number, because it can be changed into a prime (1136140457) 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, 1955 + ... + 47708.

It is an arithmetic number, because the mean of its divisors is an integer number (284053248).

Almost surely, 2^1136140451 is an apocalyptic number.

1136140451 is a deficient number, since it is larger than the sum of its proper divisors (72541).

1136140451 is an equidigital number, since it uses as much as digits as its factorization.

1136140451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72540.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1136140451 is about 33706.6825866919. The cubic root of 1136140451 is about 1043.4636890909.

Adding to 1136140451 its reverse (1540416311), we get a palindrome (2676556762).

The spelling of 1136140451 in words is "one billion, one hundred thirty-six million, one hundred forty thousand, four hundred fifty-one".