1575375481 has 9 divisors (see below), whose sum is σ = 1663450191. Its totient is φ = 1491746544.

The previous prime is 1575375463. The next prime is 1575375491. The reversal of 1575375481 is 1845735751.

The square root of 1575375481 is 39691.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1388233081 + 187142400 = 37259^2 + 13680^2 .

It is not a de Polignac number, because 1575375481 - 2⁷ = 1575375353 is a prime.

It is a super-2 number, since 2×1575375481² = 4963615812271962722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1575375491) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 753085 + ... + 755173.

It is an arithmetic number, because the mean of its divisors is an integer number (184827799).

Almost surely, 2^1575375481 is an apocalyptic number.

1575375481 is the 39691-st square number.

1575375481 is the 19846-th centered octagonal number.

It is an amenable number.

1575375481 is a deficient number, since it is larger than the sum of its proper divisors (88074710).

1575375481 is an frugal number, since it uses more digits than its factorization.

1575375481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4216 (or 2108 counting only the distinct ones).

The product of its digits is 588000, while the sum is 46.

The cubic root of 1575375481 is about 1163.5758367715.

The spelling of 1575375481 in words is "one billion, five hundred seventy-five million, three hundred seventy-five thousand, four hundred eighty-one".