1461021983 has 2 divisors, whose sum is σ = 1461021984. Its totient is φ = 1461021982.

The previous prime is 1461021959. The next prime is 1461022019. The reversal of 1461021983 is 3891201641.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1461021983 - 2²⁰ = 1459973407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1461021383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730510991 + 730510992.

It is an arithmetic number, because the mean of its divisors is an integer number (730510992).

Almost surely, 2^1461021983 is an apocalyptic number.

1461021983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1461021983 is an equidigital number, since it uses as much as digits as its factorization.

1461021983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1461021983 is about 38223.3172683900. The cubic root of 1461021983 is about 1134.7118322422.

The spelling of 1461021983 in words is "one billion, four hundred sixty-one million, twenty-one thousand, nine hundred eighty-three".