1489156855 has 4 divisors (see below), whose sum is σ = 1786988232. Its totient is φ = 1191325480.

The previous prime is 1489156849. The next prime is 1489156861. The reversal of 1489156855 is 5586519841.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (1489156849) and next prime (1489156861).

It is not a de Polignac number, because 1489156855 - 2¹³ = 1489148663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148915681 + ... + 148915690.

It is an arithmetic number, because the mean of its divisors is an integer number (446747058).

Almost surely, 2^1489156855 is an apocalyptic number.

1489156855 is a deficient number, since it is larger than the sum of its proper divisors (297831377).

1489156855 is an equidigital number, since it uses as much as digits as its factorization.

1489156855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297831376.

The product of its digits is 1728000, while the sum is 52.

The square root of 1489156855 is about 38589.5951650183. The cubic root of 1489156855 is about 1141.9492799440.

The spelling of 1489156855 in words is "one billion, four hundred eighty-nine million, one hundred fifty-six thousand, eight hundred fifty-five".