161437036 has 12 divisors (see below), whose sum is σ = 286731928. Its totient is φ = 79513632.

The previous prime is 161437021. The next prime is 161437037. The reversal of 161437036 is 630734161.

It is a junction number, because it is equal to n+sod(n) for n = 161436989 and 161437007.

It is not an unprimeable number, because it can be changed into a prime (161437037) 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, 300921 + ... + 301456.

Almost surely, 2^161437036 is an apocalyptic number.

It is an amenable number.

161437036 is a deficient number, since it is larger than the sum of its proper divisors (125294892).

161437036 is a wasteful number, since it uses less digits than its factorization.

161437036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602448 (or 602446 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 161437036 is about 12705.7875001906. The cubic root of 161437036 is about 544.5039798594.

The spelling of 161437036 in words is "one hundred sixty-one million, four hundred thirty-seven thousand, thirty-six".