1257214106 has 8 divisors (see below), whose sum is σ = 1887774240. Its totient is φ = 627956028.

The previous prime is 1257214099. The next prime is 1257214121. The reversal of 1257214106 is 6014127521.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323096 + ... + 326963.

It is an arithmetic number, because the mean of its divisors is an integer number (235971780).

Almost surely, 2^1257214106 is an apocalyptic number.

1257214106 is a deficient number, since it is larger than the sum of its proper divisors (630560134).

1257214106 is an equidigital number, since it uses as much as digits as its factorization.

1257214106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651028.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 1257214106 is about 35457.2151472729. The cubic root of 1257214106 is about 1079.2856804832.

The spelling of 1257214106 in words is "one billion, two hundred fifty-seven million, two hundred fourteen thousand, one hundred six".