147856001 has 4 divisors (see below), whose sum is σ = 148242432. Its totient is φ = 147469572.

The previous prime is 147855997. The next prime is 147856003. The reversal of 147856001 is 100658741.

It is a happy number.

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: 100658741 = 23 ⋅4376467.

It is a cyclic number.

It is not a de Polignac number, because 147856001 - 2² = 147855997 is a prime.

It is a super-2 number, since 2×147856001² = 43722794063424002, 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 (147856003) 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, 192641 + ... + 193406.

It is an arithmetic number, because the mean of its divisors is an integer number (37060608).

Almost surely, 2^147856001 is an apocalyptic number.

It is an amenable number.

147856001 is a deficient number, since it is larger than the sum of its proper divisors (386431).

147856001 is an equidigital number, since it uses as much as digits as its factorization.

147856001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386430.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 147856001 is about 12159.6052978705. The cubic root of 147856001 is about 528.7856390906.

The spelling of 147856001 in words is "one hundred forty-seven million, eight hundred fifty-six thousand, one".