169970401 has 4 divisors (see below), whose sum is σ = 170150832. Its totient is φ = 169789972.

The previous prime is 169970399. The next prime is 169970407. The reversal of 169970401 is 104079961.

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.

It is a cyclic number.

It is not a de Polignac number, because 169970401 - 2¹ = 169970399 is a prime.

It is a super-2 number, since 2×169970401² = 57779874432201602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169970407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88795 + ... + 90688.

It is an arithmetic number, because the mean of its divisors is an integer number (42537708).

Almost surely, 2^169970401 is an apocalyptic number.

It is an amenable number.

169970401 is a deficient number, since it is larger than the sum of its proper divisors (180431).

169970401 is an equidigital number, since it uses as much as digits as its factorization.

169970401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180430.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 169970401 is about 13037.2696911585. The cubic root of 169970401 is about 553.9336731535.

The spelling of 169970401 in words is "one hundred sixty-nine million, nine hundred seventy thousand, four hundred one".