1489156739 has 8 divisors (see below), whose sum is σ = 1702212960. Its totient is φ = 1276180416.

The previous prime is 1489156733. The next prime is 1489156751. The reversal of 1489156739 is 9376519841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1489156739 - 2²⁰ = 1488108163 is a prime.

It is a super-2 number, since 2×1489156739² = 4435175586618228242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1489156733) 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, 27497 + ... + 61109.

It is an arithmetic number, because the mean of its divisors is an integer number (212776620).

Almost surely, 2^1489156739 is an apocalyptic number.

1489156739 is a deficient number, since it is larger than the sum of its proper divisors (213056221).

1489156739 is an equidigital number, since it uses as much as digits as its factorization.

1489156739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39949.

The product of its digits is 1632960, while the sum is 53.

The square root of 1489156739 is about 38589.5936620224. The cubic root of 1489156739 is about 1141.9492502927.

The spelling of 1489156739 in words is "one billion, four hundred eighty-nine million, one hundred fifty-six thousand, seven hundred thirty-nine".