162003137 has 4 divisors (see below), whose sum is σ = 162061956. Its totient is φ = 161944320.

The previous prime is 162003113. The next prime is 162003143. The reversal of 162003137 is 731300261.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 731300261 = 31 ⋅23590331.

It can be written as a sum of positive squares in 2 ways, for example, as 98386561 + 63616576 = 9919^2 + 7976^2 .

It is a cyclic number.

It is not a de Polignac number, because 162003137 - 2⁸ = 162002881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162003157) 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, 25064 + ... + 30857.

It is an arithmetic number, because the mean of its divisors is an integer number (40515489).

Almost surely, 2^162003137 is an apocalyptic number.

It is an amenable number.

162003137 is a deficient number, since it is larger than the sum of its proper divisors (58819).

162003137 is an equidigital number, since it uses as much as digits as its factorization.

162003137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58818.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 162003137 is about 12728.0452937598. The cubic root of 162003137 is about 545.1396965351.

Adding to 162003137 its reverse (731300261), we get a palindrome (893303398).

The spelling of 162003137 in words is "one hundred sixty-two million, three thousand, one hundred thirty-seven".