1361602331 has 8 divisors (see below), whose sum is σ = 1402564800. Its totient is φ = 1320859008.

The previous prime is 1361602321. The next prime is 1361602337. The reversal of 1361602331 is 1332061631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1361602331 is a prime.

It is a super-2 number, since 2×1361602331² = 3707921815569267122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1361602331.

It is not an unprimeable number, because it can be changed into a prime (1361602337) 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, 42131 + ... + 67068.

It is an arithmetic number, because the mean of its divisors is an integer number (175320600).

Almost surely, 2^1361602331 is an apocalyptic number.

1361602331 is a deficient number, since it is larger than the sum of its proper divisors (40962469).

1361602331 is a wasteful number, since it uses less digits than its factorization.

1361602331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109573.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 1361602331 is about 36899.8960838645. The cubic root of 1361602331 is about 1108.3665965683.

Adding to 1361602331 its reverse (1332061631), we get a palindrome (2693663962).

The spelling of 1361602331 in words is "one billion, three hundred sixty-one million, six hundred two thousand, three hundred thirty-one".