162538725 has 12 divisors (see below), whose sum is σ = 268730816. Its totient is φ = 86687280.

The previous prime is 162538721. The next prime is 162538741. The reversal of 162538725 is 527835261.

It is not a de Polignac number, because 162538725 - 2² = 162538721 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 (162538721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1083517 + ... + 1083666.

Almost surely, 2^162538725 is an apocalyptic number.

162538725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

162538725 is a deficient number, since it is larger than the sum of its proper divisors (106192091).

162538725 is a wasteful number, since it uses less digits than its factorization.

162538725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167196 (or 2167191 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 162538725 is about 12749.0676129668. The cubic root of 162538725 is about 545.7397859742.

The spelling of 162538725 in words is "one hundred sixty-two million, five hundred thirty-eight thousand, seven hundred twenty-five".