161134190 has 32 divisors (see below), whose sum is σ = 331922880. Its totient is φ = 55171584.

The previous prime is 161134153. The next prime is 161134199. The reversal of 161134190 is 91431161.

It is a super-2 number, since 2×161134190² = 51928454373912200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161134199) 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, 85094 + ... + 86966.

It is an arithmetic number, because the mean of its divisors is an integer number (10372590).

Almost surely, 2^161134190 is an apocalyptic number.

161134190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161134190 is an abundant number, since it is smaller than the sum of its proper divisors (170788690).

161134190 is a wasteful number, since it uses less digits than its factorization.

161134190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3116.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 161134190 is about 12693.8642658569. The cubic root of 161134190 is about 544.1632813460.

The spelling of 161134190 in words is "one hundred sixty-one million, one hundred thirty-four thousand, one hundred ninety".