1375969247 has 8 divisors (see below), whose sum is σ = 1391814144. Its totient is φ = 1360188928.

The previous prime is 1375969223. The next prime is 1375969271. The reversal of 1375969247 is 7429695731.

It is an interprime number because it is at equal distance from previous prime (1375969223) and next prime (1375969271).

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 1375969247 - 2⁶ = 1375969183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375969207) 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, 27383 + ... + 59175.

It is an arithmetic number, because the mean of its divisors is an integer number (173976768).

Almost surely, 2^1375969247 is an apocalyptic number.

1375969247 is a deficient number, since it is larger than the sum of its proper divisors (15844897).

1375969247 is a wasteful number, since it uses less digits than its factorization.

1375969247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32289.

The product of its digits is 2857680, while the sum is 53.

The square root of 1375969247 is about 37094.0594570074. The cubic root of 1375969247 is about 1112.2512670705.

The spelling of 1375969247 in words is "one billion, three hundred seventy-five million, nine hundred sixty-nine thousand, two hundred forty-seven".