147406881 has 16 divisors (see below), whose sum is σ = 212946624. Its totient is φ = 90338304.

The previous prime is 147406879. The next prime is 147406907. The reversal of 147406881 is 188604741.

It is not a de Polignac number, because 147406881 - 2¹ = 147406879 is a prime.

It is a super-3 number, since 3×147406881³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (147406801) 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, 31416 + ... + 35801.

It is an arithmetic number, because the mean of its divisors is an integer number (13309164).

Almost surely, 2^147406881 is an apocalyptic number.

It is an amenable number.

147406881 is a deficient number, since it is larger than the sum of its proper divisors (65539743).

147406881 is a wasteful number, since it uses less digits than its factorization.

147406881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67280.

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

The square root of 147406881 is about 12141.1235476788. The cubic root of 147406881 is about 528.2496917905.

The spelling of 147406881 in words is "one hundred forty-seven million, four hundred six thousand, eight hundred eighty-one".