1375512473 has 8 divisors (see below), whose sum is σ = 1384283208. Its totient is φ = 1366769664.

The previous prime is 1375512461. The next prime is 1375512491. The reversal of 1375512473 is 3742155731.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 35366809 + 1340145664 = 5947^2 + 36608^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1375512473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375512443) 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, 96665 + ... + 109977.

It is an arithmetic number, because the mean of its divisors is an integer number (173035401).

Almost surely, 2^1375512473 is an apocalyptic number.

It is an amenable number.

1375512473 is a deficient number, since it is larger than the sum of its proper divisors (8770735).

1375512473 is a wasteful number, since it uses less digits than its factorization.

1375512473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13963.

The product of its digits is 88200, while the sum is 38.

The square root of 1375512473 is about 37087.9019762510. The cubic root of 1375512473 is about 1112.1281771856.

The spelling of 1375512473 in words is "one billion, three hundred seventy-five million, five hundred twelve thousand, four hundred seventy-three".