261031483 has 4 divisors (see below), whose sum is σ = 261157248. Its totient is φ = 260905720.

The previous prime is 261031471. The next prime is 261031493. The reversal of 261031483 is 384130162.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 261031483 - 2¹³ = 261023291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261031403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59716 + ... + 63937.

It is an arithmetic number, because the mean of its divisors is an integer number (65289312).

Almost surely, 2^261031483 is an apocalyptic number.

261031483 is a deficient number, since it is larger than the sum of its proper divisors (125765).

261031483 is a wasteful number, since it uses less digits than its factorization.

261031483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125764.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 261031483 is about 16156.4687664106. The cubic root of 261031483 is about 639.0933475500.

The spelling of 261031483 in words is "two hundred sixty-one million, thirty-one thousand, four hundred eighty-three".