146131261 has 16 divisors (see below), whose sum is σ = 160603200. Its totient is φ = 132427008.

The previous prime is 146131207. The next prime is 146131267. The reversal of 146131261 is 162131641.

It is a cyclic number.

It is not a de Polignac number, because 146131261 - 2¹⁹ = 145606973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146131267) 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, 61090 + ... + 63436.

It is an arithmetic number, because the mean of its divisors is an integer number (10037700).

Almost surely, 2^146131261 is an apocalyptic number.

It is an amenable number.

146131261 is a deficient number, since it is larger than the sum of its proper divisors (14471939).

146131261 is a wasteful number, since it uses less digits than its factorization.

146131261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508.

The product of its digits is 864, while the sum is 25.

The square root of 146131261 is about 12088.4763721488. The cubic root of 146131261 is about 526.7214975672.

The spelling of 146131261 in words is "one hundred forty-six million, one hundred thirty-one thousand, two hundred sixty-one".