146672401 has 4 divisors (see below), whose sum is σ = 151730100. Its totient is φ = 141614704.

The previous prime is 146672399. The next prime is 146672417. The reversal of 146672401 is 104276641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81450625 + 65221776 = 9025^2 + 8076^2 .

It is a cyclic number.

It is not a de Polignac number, because 146672401 - 2¹ = 146672399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146676401) 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, 2528806 + ... + 2528863.

It is an arithmetic number, because the mean of its divisors is an integer number (37932525).

Almost surely, 2^146672401 is an apocalyptic number.

It is an amenable number.

146672401 is a deficient number, since it is larger than the sum of its proper divisors (5057699).

146672401 is an equidigital number, since it uses as much as digits as its factorization.

146672401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5057698.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 146672401 is about 12110.8381625716. The cubic root of 146672401 is about 527.3708657193.

The spelling of 146672401 in words is "one hundred forty-six million, six hundred seventy-two thousand, four hundred one".