1874249081 has 4 divisors (see below), whose sum is σ = 1874378064. Its totient is φ = 1874120100.

The previous prime is 1874249077. The next prime is 1874249107. The reversal of 1874249081 is 1809424781.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1874249081 - 2² = 1874249077 is a prime.

It is a super-2 number, since 2×1874249081² = 7025619235258689122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1874249011) 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, 39455 + ... + 72836.

It is an arithmetic number, because the mean of its divisors is an integer number (468594516).

Almost surely, 2^1874249081 is an apocalyptic number.

It is an amenable number.

1874249081 is a deficient number, since it is larger than the sum of its proper divisors (128983).

1874249081 is a wasteful number, since it uses less digits than its factorization.

1874249081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128982.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 1874249081 is about 43292.5984551632. The cubic root of 1874249081 is about 1232.9413995843.

The spelling of 1874249081 in words is "one billion, eight hundred seventy-four million, two hundred forty-nine thousand, eighty-one".