161147003 has 2 divisors, whose sum is σ = 161147004. Its totient is φ = 161147002.

The previous prime is 161146991. The next prime is 161147023. The reversal of 161147003 is 300741161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161147003 - 2²² = 156952699 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161147003.

It is not a weakly prime, because it can be changed into another prime (161147023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80573501 + 80573502.

It is an arithmetic number, because the mean of its divisors is an integer number (80573502).

Almost surely, 2^161147003 is an apocalyptic number.

161147003 is a deficient number, since it is larger than the sum of its proper divisors (1).

161147003 is an equidigital number, since it uses as much as digits as its factorization.

161147003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 161147003 is about 12694.3689484748. The cubic root of 161147003 is about 544.1777044785.

Adding to 161147003 its reverse (300741161), we get a palindrome (461888164).

The spelling of 161147003 in words is "one hundred sixty-one million, one hundred forty-seven thousand, three".