162420577 has 4 divisors (see below), whose sum is σ = 177186096. Its totient is φ = 147655060.

The previous prime is 162420571. The next prime is 162420611. The reversal of 162420577 is 775024261.

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 162420577 - 2⁷ = 162420449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162420571) 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, 7382743 + ... + 7382764.

It is an arithmetic number, because the mean of its divisors is an integer number (44296524).

Almost surely, 2^162420577 is an apocalyptic number.

It is an amenable number.

162420577 is a deficient number, since it is larger than the sum of its proper divisors (14765519).

162420577 is a wasteful number, since it uses less digits than its factorization.

162420577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14765518.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 162420577 is about 12744.4331768816. The cubic root of 162420577 is about 545.6075227379.

It can be divided in two parts, 1624 and 20577, that added together give a square (22201 = 149²).

The spelling of 162420577 in words is "one hundred sixty-two million, four hundred twenty thousand, five hundred seventy-seven".