351161645 has 16 divisors (see below), whose sum is σ = 435939840. Its totient is φ = 271272000.

The previous prime is 351161641. The next prime is 351161647. The reversal of 351161645 is 546161153.

It is not a de Polignac number, because 351161645 - 2² = 351161641 is a prime.

It is a super-3 number, since 3×351161645³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351161641) 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, 76670 + ... + 81120.

It is an arithmetic number, because the mean of its divisors is an integer number (27246240).

Almost surely, 2^351161645 is an apocalyptic number.

It is an amenable number.

351161645 is a deficient number, since it is larger than the sum of its proper divisors (84778195).

351161645 is a wasteful number, since it uses less digits than its factorization.

351161645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4996.

The product of its digits is 10800, while the sum is 32.

The square root of 351161645 is about 18739.3074845363. The cubic root of 351161645 is about 705.5086750241.

It can be divided in two parts, 3511 and 61645, that added together give a palindrome (65156).

The spelling of 351161645 in words is "three hundred fifty-one million, one hundred sixty-one thousand, six hundred forty-five".