1494999869 has 4 divisors (see below), whose sum is σ = 1630908960. Its totient is φ = 1359090780.

The previous prime is 1494999841. The next prime is 1494999881. The reversal of 1494999869 is 9689994941.

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 1494999869 - 2²⁰ = 1493951293 is a prime.

It is a super-2 number, since 2×1494999869² = 4470049216620034322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1494999799 and 1494999808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1494999889) 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, 67954529 + ... + 67954550.

It is an arithmetic number, because the mean of its divisors is an integer number (407727240).

Almost surely, 2^1494999869 is an apocalyptic number.

It is an amenable number.

1494999869 is a deficient number, since it is larger than the sum of its proper divisors (135909091).

1494999869 is a wasteful number, since it uses less digits than its factorization.

1494999869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135909090.

The product of its digits is 45349632, while the sum is 68.

The square root of 1494999869 is about 38665.2281643339. The cubic root of 1494999869 is about 1143.4408885908.

The spelling of 1494999869 in words is "one billion, four hundred ninety-four million, nine hundred ninety-nine thousand, eight hundred sixty-nine".