262161031 has 16 divisors (see below), whose sum is σ = 305187840. Its totient is φ = 222678720.

The previous prime is 262161007. The next prime is 262161041. The reversal of 262161031 is 130161262.

It is a de Polignac number, because none of the positive numbers 2^k-262161031 is a prime.

It is a super-2 number, since 2×262161031² = 137456812349965922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 262160993 and 262161011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (262161041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6666 + ... + 23848.

It is an arithmetic number, because the mean of its divisors is an integer number (19074240).

Almost surely, 2^262161031 is an apocalyptic number.

262161031 is a deficient number, since it is larger than the sum of its proper divisors (43026809).

262161031 is a wasteful number, since it uses less digits than its factorization.

262161031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17286.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 262161031 is about 16191.3875563523. The cubic root of 262161031 is about 640.0138595631.

The spelling of 262161031 in words is "two hundred sixty-two million, one hundred sixty-one thousand, thirty-one".