261150747 has 16 divisors (see below), whose sum is σ = 409075968. Its totient is φ = 146098080.

The previous prime is 261150707. The next prime is 261150749. The reversal of 261150747 is 747051162.

261150747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 261150747 - 2¹⁵ = 261117979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (261150749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303943 + ... + 304800.

It is an arithmetic number, because the mean of its divisors is an integer number (25567248).

Almost surely, 2^261150747 is an apocalyptic number.

261150747 is a deficient number, since it is larger than the sum of its proper divisors (147925221).

261150747 is a wasteful number, since it uses less digits than its factorization.

261150747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608770.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 261150747 is about 16160.1592504529. The cubic root of 261150747 is about 639.1906655986.

The spelling of 261150747 in words is "two hundred sixty-one million, one hundred fifty thousand, seven hundred forty-seven".