1545461 has 2 divisors, whose sum is σ = 1545462. Its totient is φ = 1545460.

The previous prime is 1545449. The next prime is 1545473. The reversal of 1545461 is 1645451.

It is a balanced prime because it is at equal distance from previous prime (1545449) and next prime (1545473).

It can be written as a sum of positive squares in only one way, i.e., 1380625 + 164836 = 1175^2 + 406^2 .

It is a cyclic number.

It is not a de Polignac number, because 1545461 - 2¹⁰ = 1544437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1545461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1545421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 772730 + 772731.

It is an arithmetic number, because the mean of its divisors is an integer number (772731).

2^1545461 is an apocalyptic number.

1545461 is the 665-th centered heptagonal number.

It is an amenable number.

1545461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1545461 is an equidigital number, since it uses as much as digits as its factorization.

1545461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2400, while the sum is 26.

The square root of 1545461 is about 1243.1657170305. The cubic root of 1545461 is about 115.6163753976.

The spelling of 1545461 in words is "one million, five hundred forty-five thousand, four hundred sixty-one".