1275471155 has 24 divisors (see below), whose sum is σ = 1858180128. Its totient is φ = 823154688.

The previous prime is 1275471149. The next prime is 1275471167. The reversal of 1275471155 is 5511745721.

It is not a de Polignac number, because 1275471155 - 2¹⁶ = 1275405619 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52934 + ... + 73163.

It is an arithmetic number, because the mean of its divisors is an integer number (77424172).

Almost surely, 2^1275471155 is an apocalyptic number.

1275471155 is a deficient number, since it is larger than the sum of its proper divisors (582708973).

1275471155 is a wasteful number, since it uses less digits than its factorization.

1275471155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126143 (or 126126 counting only the distinct ones).

The product of its digits is 49000, while the sum is 38.

The square root of 1275471155 is about 35713.7390229587. The cubic root of 1275471155 is about 1084.4849941769.

The spelling of 1275471155 in words is "one billion, two hundred seventy-five million, four hundred seventy-one thousand, one hundred fifty-five".