1257750463 has 2 divisors, whose sum is σ = 1257750464. Its totient is φ = 1257750462.

The previous prime is 1257750451. The next prime is 1257750479. The reversal of 1257750463 is 3640577521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1257750463 - 2²⁵ = 1224196031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1257750493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628875231 + 628875232.

It is an arithmetic number, because the mean of its divisors is an integer number (628875232).

Almost surely, 2^1257750463 is an apocalyptic number.

1257750463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1257750463 is an equidigital number, since it uses as much as digits as its factorization.

1257750463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 1257750463 is about 35464.7777802146. Note that the first 4 decimals coincide. The cubic root of 1257750463 is about 1079.4391415166.

The spelling of 1257750463 in words is "one billion, two hundred fifty-seven million, seven hundred fifty thousand, four hundred sixty-three".