1081654791 has 8 divisors (see below), whose sum is σ = 1648235904. Its totient is φ = 618088440.

The previous prime is 1081654747. The next prime is 1081654799. The reversal of 1081654791 is 1974561801.

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

It is not a de Polignac number, because 1081654791 - 2⁹ = 1081654279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081654799) 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, 25753665 + ... + 25753706.

It is an arithmetic number, because the mean of its divisors is an integer number (206029488).

Almost surely, 2^1081654791 is an apocalyptic number.

1081654791 is a deficient number, since it is larger than the sum of its proper divisors (566581113).

1081654791 is an equidigital number, since it uses as much as digits as its factorization.

1081654791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51507381.

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 1081654791 is about 32888.5206569101. The cubic root of 1081654791 is about 1026.5093103809.

The spelling of 1081654791 in words is "one billion, eighty-one million, six hundred fifty-four thousand, seven hundred ninety-one".