161334507 has 16 divisors (see below), whose sum is σ = 220105728. Its totient is φ = 105087360.

The previous prime is 161334499. The next prime is 161334521. The reversal of 161334507 is 705433161.

It is not a de Polignac number, because 161334507 - 2³ = 161334499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161334557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20718 + ... + 27420.

It is an arithmetic number, because the mean of its divisors is an integer number (13756608).

Almost surely, 2^161334507 is an apocalyptic number.

161334507 is a deficient number, since it is larger than the sum of its proper divisors (58771221).

161334507 is a wasteful number, since it uses less digits than its factorization.

161334507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6890.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 161334507 is about 12701.7521232309. The cubic root of 161334507 is about 544.3886835746.

Adding to 161334507 its reverse (705433161), we get a palindrome (866767668).

The spelling of 161334507 in words is "one hundred sixty-one million, three hundred thirty-four thousand, five hundred seven".