1375214657 has 4 divisors (see below), whose sum is σ = 1398523440. Its totient is φ = 1351905876.

The previous prime is 1375214587. The next prime is 1375214669. The reversal of 1375214657 is 7564125731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1375214657 - 2¹⁴ = 1375198273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375216657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11654303 + ... + 11654420.

It is an arithmetic number, because the mean of its divisors is an integer number (349630860).

Almost surely, 2^1375214657 is an apocalyptic number.

It is an amenable number.

1375214657 is a deficient number, since it is larger than the sum of its proper divisors (23308783).

1375214657 is an equidigital number, since it uses as much as digits as its factorization.

1375214657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23308782.

The product of its digits is 176400, while the sum is 41.

The square root of 1375214657 is about 37083.8867569191. The cubic root of 1375214657 is about 1112.0479080791.

The spelling of 1375214657 in words is "one billion, three hundred seventy-five million, two hundred fourteen thousand, six hundred fifty-seven".