146074881 has 4 divisors (see below), whose sum is σ = 194766512. Its totient is φ = 97383252.

The previous prime is 146074879. The next prime is 146074889. The reversal of 146074881 is 188470641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 188470641 = 3 ⋅62823547.

It is not a de Polignac number, because 146074881 - 2¹ = 146074879 is a prime.

It is a super-2 number, since 2×146074881² = 42675741718328322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (146074889) 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, 24345811 + ... + 24345816.

It is an arithmetic number, because the mean of its divisors is an integer number (48691628).

Almost surely, 2^146074881 is an apocalyptic number.

It is an amenable number.

146074881 is a deficient number, since it is larger than the sum of its proper divisors (48691631).

146074881 is an equidigital number, since it uses as much as digits as its factorization.

146074881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48691630.

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 146074881 is about 12086.1441742187. The cubic root of 146074881 is about 526.6537493939.

The spelling of 146074881 in words is "one hundred forty-six million, seventy-four thousand, eight hundred eighty-one".