1545470461 has 2 divisors, whose sum is σ = 1545470462. Its totient is φ = 1545470460.

The previous prime is 1545470447. The next prime is 1545470471. The reversal of 1545470461 is 1640745451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1544018436 + 1452025 = 39294^2 + 1205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1545470461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1545470461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1545470471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 772735230 + 772735231.

It is an arithmetic number, because the mean of its divisors is an integer number (772735231).

Almost surely, 2^1545470461 is an apocalyptic number.

It is an amenable number.

1545470461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1545470461 is an equidigital number, since it uses as much as digits as its factorization.

1545470461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 1545470461 is about 39312.4720794813. The cubic root of 1545470461 is about 1156.1661132382.

The spelling of 1545470461 in words is "one billion, five hundred forty-five million, four hundred seventy thousand, four hundred sixty-one".