1495421849 has 4 divisors (see below), whose sum is σ = 1495508580. Its totient is φ = 1495335120.

The previous prime is 1495421827. The next prime is 1495421929. The reversal of 1495421849 is 9481245941.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9481245941 = 41 ⋅231249901.

It can be written as a sum of positive squares in 2 ways, for example, as 854977600 + 640444249 = 29240^2 + 25307^2 .

It is a cyclic number.

It is not a de Polignac number, because 1495421849 - 2²⁴ = 1478644633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1495421149) 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, 7754 + ... + 55235.

It is an arithmetic number, because the mean of its divisors is an integer number (373877145).

Almost surely, 2^1495421849 is an apocalyptic number.

It is an amenable number.

1495421849 is a deficient number, since it is larger than the sum of its proper divisors (86731).

1495421849 is an equidigital number, since it uses as much as digits as its factorization.

1495421849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86730.

The product of its digits is 414720, while the sum is 47.

The square root of 1495421849 is about 38670.6846202650. The cubic root of 1495421849 is about 1143.5484613529.

The spelling of 1495421849 in words is "one billion, four hundred ninety-five million, four hundred twenty-one thousand, eight hundred forty-nine".