1257070514 has 32 divisors (see below), whose sum is σ = 2321172480. Its totient is φ = 498515472.

The previous prime is 1257070501. The next prime is 1257070517. The reversal of 1257070514 is 4150707521.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1257070517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43514 + ... + 66389.

It is an arithmetic number, because the mean of its divisors is an integer number (72536640).

Almost surely, 2^1257070514 is an apocalyptic number.

1257070514 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1257070514 is a deficient number, since it is larger than the sum of its proper divisors (1064101966).

1257070514 is a wasteful number, since it uses less digits than its factorization.

1257070514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109974.

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 1257070514 is about 35455.1902265381. The cubic root of 1257070514 is about 1079.2445889170.

The spelling of 1257070514 in words is "one billion, two hundred fifty-seven million, seventy thousand, five hundred fourteen".