1461973757 has 2 divisors, whose sum is σ = 1461973758. Its totient is φ = 1461973756.

The previous prime is 1461973739. The next prime is 1461973811. The reversal of 1461973757 is 7573791641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1412707396 + 49266361 = 37586^2 + 7019^2 .

It is a cyclic number.

It is not a de Polignac number, because 1461973757 - 2¹² = 1461969661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1461973057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730986878 + 730986879.

It is an arithmetic number, because the mean of its divisors is an integer number (730986879).

Almost surely, 2^1461973757 is an apocalyptic number.

It is an amenable number.

1461973757 is a deficient number, since it is larger than the sum of its proper divisors (1).

1461973757 is an equidigital number, since it uses as much as digits as its factorization.

1461973757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1111320, while the sum is 50.

The square root of 1461973757 is about 38235.7654166881. The cubic root of 1461973757 is about 1134.9581791599.

The spelling of 1461973757 in words is "one billion, four hundred sixty-one million, nine hundred seventy-three thousand, seven hundred fifty-seven".