971140494 has 16 divisors (see below), whose sum is σ = 1955145600. Its totient is φ = 321569400.

The previous prime is 971140463. The next prime is 971140501. The reversal of 971140494 is 494041179.

It is a super-2 number, since 2×971140494² = 1886227718173128072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535044 + ... + 536855.

It is an arithmetic number, because the mean of its divisors is an integer number (122196600).

Almost surely, 2^971140494 is an apocalyptic number.

971140494 is an abundant number, since it is smaller than the sum of its proper divisors (984005106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

971140494 is a wasteful number, since it uses less digits than its factorization.

971140494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072055.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 971140494 is about 31163.1271537373. The cubic root of 971140494 is about 990.2861105515.

It can be divided in two parts, 9711 and 40494, that added together give a palindrome (50205).

The spelling of 971140494 in words is "nine hundred seventy-one million, one hundred forty thousand, four hundred ninety-four".