261046150 has 12 divisors (see below), whose sum is σ = 485545932. Its totient is φ = 104418440.

The previous prime is 261046127. The next prime is 261046157. The reversal of 261046150 is 51640162.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261046157) 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, 2610412 + ... + 2610511.

It is an arithmetic number, because the mean of its divisors is an integer number (40462161).

Almost surely, 2^261046150 is an apocalyptic number.

261046150 is a deficient number, since it is larger than the sum of its proper divisors (224499782).

261046150 is a wasteful number, since it uses less digits than its factorization.

261046150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5220935 (or 5220930 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 261046150 is about 16156.9226649136. The cubic root of 261046150 is about 639.1053172512.

The spelling of 261046150 in words is "two hundred sixty-one million, forty-six thousand, one hundred fifty".