1047033261 has 6 divisors (see below), whose sum is σ = 1512381390. Its totient is φ = 698022168.

The previous prime is 1047033227. The next prime is 1047033263. The reversal of 1047033261 is 1623307401.

It can be written as a sum of positive squares in only one way, i.e., 791353161 + 255680100 = 28131^2 + 15990^2 .

It is not a de Polignac number, because 1047033261 - 2²⁶ = 979924397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047033263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58168506 + ... + 58168523.

It is an arithmetic number, because the mean of its divisors is an integer number (252063565).

Almost surely, 2^1047033261 is an apocalyptic number.

It is an amenable number.

1047033261 is a deficient number, since it is larger than the sum of its proper divisors (465348129).

1047033261 is a wasteful number, since it uses less digits than its factorization.

1047033261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116337035 (or 116337032 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 1047033261 is about 32357.8933337756. The cubic root of 1047033261 is about 1015.4381894717.

The spelling of 1047033261 in words is "one billion, forty-seven million, thirty-three thousand, two hundred sixty-one".