1257070 has 8 divisors (see below), whose sum is σ = 2262744. Its totient is φ = 502824.

The previous prime is 1257049. The next prime is 1257071. The reversal of 1257070 is 707521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1257071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62844 + ... + 62863.

It is an arithmetic number, because the mean of its divisors is an integer number (282843).

2^1257070 is an apocalyptic number.

1257070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1257070 is a deficient number, since it is larger than the sum of its proper divisors (1005674).

1257070 is a wasteful number, since it uses less digits than its factorization.

1257070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125714.

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 1257070 is about 1121.1913306836. The cubic root of 1257070 is about 107.9244441821.

The spelling of 1257070 in words is "one million, two hundred fifty-seven thousand, seventy".