1491518162 has 4 divisors (see below), whose sum is σ = 2237277246. Its totient is φ = 745759080.

The previous prime is 1491518141. The next prime is 1491518201. The reversal of 1491518162 is 2618151941.

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: 2618151941 = 241 ⋅10863701.

It can be written as a sum of positive squares in only one way, i.e., 799249441 + 692268721 = 28271^2 + 26311^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372879539 + ... + 372879542.

Almost surely, 2^1491518162 is an apocalyptic number.

1491518162 is a deficient number, since it is larger than the sum of its proper divisors (745759084).

1491518162 is an equidigital number, since it uses as much as digits as its factorization.

1491518162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745759083.

The product of its digits is 17280, while the sum is 38.

The square root of 1491518162 is about 38620.1781715206. The cubic root of 1491518162 is about 1142.5525449900.

The spelling of 1491518162 in words is "one billion, four hundred ninety-one million, five hundred eighteen thousand, one hundred sixty-two".