1140722187 has 16 divisors (see below), whose sum is σ = 1664582400. Its totient is φ = 689117600.

The previous prime is 1140722161. The next prime is 1140722201. The reversal of 1140722187 is 7812270411.

It is a cyclic number.

It is not a de Polignac number, because 1140722187 - 2⁶ = 1140722123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1140722137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45312 + ... + 65837.

It is an arithmetic number, because the mean of its divisors is an integer number (104036400).

Almost surely, 2^1140722187 is an apocalyptic number.

1140722187 is a deficient number, since it is larger than the sum of its proper divisors (523860213).

1140722187 is a wasteful number, since it uses less digits than its factorization.

1140722187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111474.

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 1140722187 is about 33774.5790055183. The cubic root of 1140722187 is about 1044.8644733165.

Adding to 1140722187 its reverse (7812270411), we get a palindrome (8952992598).

It can be divided in two parts, 1140 and 722187, that added together give a palindrome (723327).

The spelling of 1140722187 in words is "one billion, one hundred forty million, seven hundred twenty-two thousand, one hundred eighty-seven".