261098937 has 32 divisors (see below), whose sum is σ = 446808960. Its totient is φ = 148930560.

The previous prime is 261098911. The next prime is 261098941. The reversal of 261098937 is 739890162.

261098937 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 261098937 - 2¹⁶ = 261033401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 261098892 and 261098901.

It is not an unprimeable number, because it can be changed into a prime (261090937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20808 + ... + 30905.

It is an arithmetic number, because the mean of its divisors is an integer number (13962780).

Almost surely, 2^261098937 is an apocalyptic number.

261098937 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

261098937 is a deficient number, since it is larger than the sum of its proper divisors (185710023).

261098937 is a wasteful number, since it uses less digits than its factorization.

261098937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51750 (or 51744 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 261098937 is about 16158.5561545579. The cubic root of 261098937 is about 639.1483928768.

The spelling of 261098937 in words is "two hundred sixty-one million, ninety-eight thousand, nine hundred thirty-seven".