162729001 has 4 divisors (see below), whose sum is σ = 162805072. Its totient is φ = 162652932.

The previous prime is 162728989. The next prime is 162729023. The reversal of 162729001 is 100927261.

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: 100927261 = 4621 ⋅21841.

It is a cyclic number.

It is not a de Polignac number, because 162729001 - 2⁷ = 162728873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162729031) 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, 34731 + ... + 39136.

It is an arithmetic number, because the mean of its divisors is an integer number (40701268).

Almost surely, 2^162729001 is an apocalyptic number.

It is an amenable number.

162729001 is a deficient number, since it is larger than the sum of its proper divisors (76071).

162729001 is an equidigital number, since it uses as much as digits as its factorization.

162729001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76070.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 162729001 is about 12756.5277799251. The cubic root of 162729001 is about 545.9526597356.

It can be divided in two parts, 1627 and 29001, that added together give a triangular number (30628 = T₂₄₇).

The spelling of 162729001 in words is "one hundred sixty-two million, seven hundred twenty-nine thousand, one".