1372665505 has 8 divisors (see below), whose sum is σ = 1650583872. Its totient is φ = 1095875568.

The previous prime is 1372665487. The next prime is 1372665509. The reversal of 1372665505 is 5055662731.

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

It is a cyclic number.

It is not a de Polignac number, because 1372665505 - 2⁷ = 1372665377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1372665509) 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, 279427 + ... + 284296.

It is an arithmetic number, because the mean of its divisors is an integer number (206322984).

Almost surely, 2^1372665505 is an apocalyptic number.

It is an amenable number.

1372665505 is a deficient number, since it is larger than the sum of its proper divisors (277918367).

1372665505 is an equidigital number, since it uses as much as digits as its factorization.

1372665505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564215.

The product of its (nonzero) digits is 189000, while the sum is 40.

The square root of 1372665505 is about 37049.5007388764. The cubic root of 1372665505 is about 1111.3603711690.

The spelling of 1372665505 in words is "one billion, three hundred seventy-two million, six hundred sixty-five thousand, five hundred five".