162921949 has 12 divisors (see below), whose sum is σ = 171686592. Its totient is φ = 154583000.

The previous prime is 162921929. The next prime is 162921953. The reversal of 162921949 is 949129261.

It is not a de Polignac number, because 162921949 - 2¹¹ = 162919901 is a prime.

It is a super-2 number, since 2×162921949² = 53087122931917202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162921929) 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, 68124 + ... + 70474.

It is an arithmetic number, because the mean of its divisors is an integer number (14307216).

Almost surely, 2^162921949 is an apocalyptic number.

It is an amenable number.

162921949 is a deficient number, since it is larger than the sum of its proper divisors (8764643).

162921949 is a wasteful number, since it uses less digits than its factorization.

162921949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528 (or 2505 counting only the distinct ones).

The product of its digits is 69984, while the sum is 43.

The square root of 162921949 is about 12764.0882557275. The cubic root of 162921949 is about 546.1683534481.

The spelling of 162921949 in words is "one hundred sixty-two million, nine hundred twenty-one thousand, nine hundred forty-nine".