146571401 has 4 divisors (see below), whose sum is σ = 146601492. Its totient is φ = 146541312.

The previous prime is 146571353. The next prime is 146571407. The reversal of 146571401 is 104175641.

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 72267001 + 74304400 = 8501^2 + 8620^2 .

It is a cyclic number.

It is not a de Polignac number, because 146571401 - 2¹⁰ = 146570377 is a prime.

It is a super-2 number, since 2×146571401² = 42966351182205602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146571407) 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, 5876 + ... + 18101.

It is an arithmetic number, because the mean of its divisors is an integer number (36650373).

Almost surely, 2^146571401 is an apocalyptic number.

It is an amenable number.

146571401 is a deficient number, since it is larger than the sum of its proper divisors (30091).

146571401 is an equidigital number, since it uses as much as digits as its factorization.

146571401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30090.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 146571401 is about 12106.6676257342. The cubic root of 146571401 is about 527.2497870708.

The spelling of 146571401 in words is "one hundred forty-six million, five hundred seventy-one thousand, four hundred one".