1258477061 has 2 divisors, whose sum is σ = 1258477062. Its totient is φ = 1258477060.

The previous prime is 1258477019. The next prime is 1258477067. The reversal of 1258477061 is 1607748521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 735440161 + 523036900 = 27119^2 + 22870^2 .

It is a cyclic number.

It is not a de Polignac number, because 1258477061 - 2¹⁸ = 1258214917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1258477067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 629238530 + 629238531.

It is an arithmetic number, because the mean of its divisors is an integer number (629238531).

Almost surely, 2^1258477061 is an apocalyptic number.

It is an amenable number.

1258477061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1258477061 is an equidigital number, since it uses as much as digits as its factorization.

1258477061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 1258477061 is about 35475.0202395996. The cubic root of 1258477061 is about 1079.6469642287.

The spelling of 1258477061 in words is "one billion, two hundred fifty-eight million, four hundred seventy-seven thousand, sixty-one".