1296155 has 16 divisors (see below), whose sum is σ = 1840320. Its totient is φ = 857472.

The previous prime is 1296143. The next prime is 1296167. The reversal of 1296155 is 5516921.

It is an interprime number because it is at equal distance from previous prime (1296143) and next prime (1296167).

It is not a de Polignac number, because 1296155 - 2¹⁰ = 1295131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377 + ... + 1653.

It is an arithmetic number, because the mean of its divisors is an integer number (115020).

2^1296155 is an apocalyptic number.

1296155 is a deficient number, since it is larger than the sum of its proper divisors (544165).

1296155 is a wasteful number, since it uses less digits than its factorization.

1296155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318.

The product of its digits is 2700, while the sum is 29.

The square root of 1296155 is about 1138.4880324360. The cubic root of 1296155 is about 109.0315819043.

The spelling of 1296155 in words is "one million, two hundred ninety-six thousand, one hundred fifty-five".