361349521 has 8 divisors (see below), whose sum is σ = 390121704. Its totient is φ = 332716800.

The previous prime is 361349507. The next prime is 361349533. The reversal of 361349521 is 125943163.

It can be written as a sum of positive squares in 4 ways, for example, as 88736400 + 272613121 = 9420^2 + 16511^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 361349521 - 2¹³ = 361341329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361349551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29446 + ... + 39871.

It is an arithmetic number, because the mean of its divisors is an integer number (48765213).

Almost surely, 2^361349521 is an apocalyptic number.

It is an amenable number.

361349521 is a deficient number, since it is larger than the sum of its proper divisors (28772183).

361349521 is a wasteful number, since it uses less digits than its factorization.

361349521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69731.

The product of its digits is 19440, while the sum is 34.

The square root of 361349521 is about 19009.1956957679. The cubic root of 361349521 is about 712.2664602815.

The spelling of 361349521 in words is "three hundred sixty-one million, three hundred forty-nine thousand, five hundred twenty-one".