161012375 has 8 divisors (see below), whose sum is σ = 200943600. Its totient is φ = 128809800.

The previous prime is 161012359. The next prime is 161012387. The reversal of 161012375 is 573210161.

It is not a de Polignac number, because 161012375 - 2⁴ = 161012359 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 643925 + ... + 644174.

It is an arithmetic number, because the mean of its divisors is an integer number (25117950).

Almost surely, 2^161012375 is an apocalyptic number.

161012375 is a deficient number, since it is larger than the sum of its proper divisors (39931225).

161012375 is an equidigital number, since it uses as much as digits as its factorization.

161012375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288114 (or 1288104 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 161012375 is about 12689.0651743933. The cubic root of 161012375 is about 544.0261203847.

The spelling of 161012375 in words is "one hundred sixty-one million, twelve thousand, three hundred seventy-five".