162861407 has 4 divisors (see below), whose sum is σ = 171433080. Its totient is φ = 154289736.

The previous prime is 162861397. The next prime is 162861431. The reversal of 162861407 is 704168261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704168261 = 601 ⋅1171661.

It is a cyclic number.

It is not a de Polignac number, because 162861407 - 2¹⁸ = 162599263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162861487) 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, 4285808 + ... + 4285845.

It is an arithmetic number, because the mean of its divisors is an integer number (42858270).

Almost surely, 2^162861407 is an apocalyptic number.

162861407 is a deficient number, since it is larger than the sum of its proper divisors (8571673).

162861407 is an equidigital number, since it uses as much as digits as its factorization.

162861407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8571672.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 162861407 is about 12761.7164597871. The cubic root of 162861407 is about 546.1006927854.

The spelling of 162861407 in words is "one hundred sixty-two million, eight hundred sixty-one thousand, four hundred seven".