1495673139 has 4 divisors (see below), whose sum is σ = 1994230856. Its totient is φ = 997115424.

The previous prime is 1495673131. The next prime is 1495673143. The reversal of 1495673139 is 9313765941.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1495673139 - 2³ = 1495673131 is a prime.

It is a super-2 number, since 2×1495673139² = 4474076277452226642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1495673131) 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, 249278854 + ... + 249278859.

It is an arithmetic number, because the mean of its divisors is an integer number (498557714).

Almost surely, 2^1495673139 is an apocalyptic number.

1495673139 is a deficient number, since it is larger than the sum of its proper divisors (498557717).

1495673139 is an equidigital number, since it uses as much as digits as its factorization.

1495673139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498557716.

The product of its digits is 612360, while the sum is 48.

The square root of 1495673139 is about 38673.9335858146. The cubic root of 1495673139 is about 1143.6125115513.

The spelling of 1495673139 in words is "one billion, four hundred ninety-five million, six hundred seventy-three thousand, one hundred thirty-nine".