1261907 has 8 divisors (see below), whose sum is σ = 1300512. Its totient is φ = 1224000.

The previous prime is 1261901. The next prime is 1261913. The reversal of 1261907 is 7091621.

It is an interprime number because it is at equal distance from previous prime (1261901) and next prime (1261913).

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

It is a cyclic number.

It is not a de Polignac number, because 1261907 - 2⁴ = 1261891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1261901) 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, 8282 + ... + 8432.

It is an arithmetic number, because the mean of its divisors is an integer number (162564).

2^1261907 is an apocalyptic number.

1261907 is a deficient number, since it is larger than the sum of its proper divisors (38605).

1261907 is a wasteful number, since it uses less digits than its factorization.

1261907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 1261907 is about 1123.3463401819. The cubic root of 1261907 is about 108.0626922248.

The spelling of 1261907 in words is "one million, two hundred sixty-one thousand, nine hundred seven".