162257401 has 8 divisors (see below), whose sum is σ = 172349640. Its totient is φ = 152226048.

The previous prime is 162257399. The next prime is 162257411. The reversal of 162257401 is 104752261.

It can be written as a sum of positive squares in 4 ways, for example, as 6007401 + 156250000 = 2451^2 + 12500^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 162257401 - 2¹ = 162257399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 162257401.

It is not an unprimeable number, because it can be changed into a prime (162257411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9666 + ... + 20443.

It is an arithmetic number, because the mean of its divisors is an integer number (21543705).

Almost surely, 2^162257401 is an apocalyptic number.

It is an amenable number.

162257401 is a deficient number, since it is larger than the sum of its proper divisors (10092239).

162257401 is a wasteful number, since it uses less digits than its factorization.

162257401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30443.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 162257401 is about 12738.0297142062. The cubic root of 162257401 is about 545.4247464621.

The spelling of 162257401 in words is "one hundred sixty-two million, two hundred fifty-seven thousand, four hundred one".