1071548461 has 4 divisors (see below), whose sum is σ = 1072586812. Its totient is φ = 1070510112.

The previous prime is 1071548447. The next prime is 1071548497. The reversal of 1071548461 is 1648451701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1005841225 + 65707236 = 31715^2 + 8106^2 .

It is a cyclic number.

It is not a de Polignac number, because 1071548461 - 2⁹ = 1071547949 is a prime.

It is a super-2 number, since 2×1071548461² = 2296432208542937042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1071548461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071548411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517626 + ... + 519691.

It is an arithmetic number, because the mean of its divisors is an integer number (268146703).

Almost surely, 2^1071548461 is an apocalyptic number.

It is an amenable number.

1071548461 is a deficient number, since it is larger than the sum of its proper divisors (1038351).

1071548461 is a wasteful number, since it uses less digits than its factorization.

1071548461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038350.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 1071548461 is about 32734.5148276250. The cubic root of 1071548461 is about 1023.3022733756.

The spelling of 1071548461 in words is "one billion, seventy-one million, five hundred forty-eight thousand, four hundred sixty-one".