1140164898 has 16 divisors (see below), whose sum is σ = 2282940480. Its totient is φ = 379619856.

The previous prime is 1140164897. The next prime is 1140164933. The reversal of 1140164898 is 8984610411.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1140164897) 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, 103078 + ... + 113601.

It is an arithmetic number, because the mean of its divisors is an integer number (142683780).

Almost surely, 2^1140164898 is an apocalyptic number.

1140164898 is an abundant number, since it is smaller than the sum of its proper divisors (1142775582).

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

1140164898 is a wasteful number, since it uses less digits than its factorization.

1140164898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217561.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 1140164898 is about 33766.3278726011. The cubic root of 1140164898 is about 1044.6942927256.

The spelling of 1140164898 in words is "one billion, one hundred forty million, one hundred sixty-four thousand, eight hundred ninety-eight".