1387030465 has 4 divisors (see below), whose sum is σ = 1664436564. Its totient is φ = 1109624368.

The previous prime is 1387030423. The next prime is 1387030499. The reversal of 1387030465 is 5640307831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5640307831 = 1973 ⋅2858747.

It can be written as a sum of positive squares in 2 ways, for example, as 486070209 + 900960256 = 22047^2 + 30016^2 .

It is a cyclic number.

It is not a de Polignac number, because 1387030465 - 2¹¹ = 1387028417 is a prime.

It is a Duffinian 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, 138703042 + ... + 138703051.

It is an arithmetic number, because the mean of its divisors is an integer number (416109141).

Almost surely, 2^1387030465 is an apocalyptic number.

It is an amenable number.

1387030465 is a deficient number, since it is larger than the sum of its proper divisors (277406099).

1387030465 is an equidigital number, since it uses as much as digits as its factorization.

1387030465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277406098.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 1387030465 is about 37242.8579059126. The cubic root of 1387030465 is about 1115.2237252741.

The spelling of 1387030465 in words is "one billion, three hundred eighty-seven million, thirty thousand, four hundred sixty-five".