349186061 has 4 divisors (see below), whose sum is σ = 399069792. Its totient is φ = 299302332.

The previous prime is 349186051. The next prime is 349186067. The reversal of 349186061 is 160681943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 160681943 = 17 ⋅9451879.

It is not a de Polignac number, because 349186061 - 2¹⁸ = 348923917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349186067) 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, 24941855 + ... + 24941868.

It is an arithmetic number, because the mean of its divisors is an integer number (99767448).

Almost surely, 2^349186061 is an apocalyptic number.

It is an amenable number.

349186061 is a deficient number, since it is larger than the sum of its proper divisors (49883731).

349186061 is an equidigital number, since it uses as much as digits as its factorization.

349186061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49883730.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 349186061 is about 18686.5208372238. The cubic root of 349186061 is about 704.1831566804.

The spelling of 349186061 in words is "three hundred forty-nine million, one hundred eighty-six thousand, sixty-one".