1277130 has 16 divisors (see below), whose sum is σ = 3065184. Its totient is φ = 340560.

The previous prime is 1277113. The next prime is 1277137. The reversal of 1277130 is 317721.

It is a super-2 number, since 2×1277130² = 3262122073800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1277097 and 1277106.

It is not an unprimeable number, because it can be changed into a prime (1277137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21256 + ... + 21315.

It is an arithmetic number, because the mean of its divisors is an integer number (191574).

2^1277130 is an apocalyptic number.

1277130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1277130 is an abundant number, since it is smaller than the sum of its proper divisors (1788054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1277130 is a wasteful number, since it uses less digits than its factorization.

1277130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42581.

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 1277130 is about 1130.1017653291. The cubic root of 1277130 is about 108.4954941605.

The spelling of 1277130 in words is "one million, two hundred seventy-seven thousand, one hundred thirty".