361749661 has 8 divisors (see below), whose sum is σ = 445230464. Its totient is φ = 286219440.

The previous prime is 361749659. The next prime is 361749671. The reversal of 361749661 is 166947163.

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

It is not a de Polignac number, because 361749661 - 2¹ = 361749659 is a prime.

It is a super-2 number, since 2×361749661² = 261725634467229842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361749631) 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, 1987545 + ... + 1987726.

It is an arithmetic number, because the mean of its divisors is an integer number (55653808).

Almost surely, 2^361749661 is an apocalyptic number.

It is an amenable number.

361749661 is a deficient number, since it is larger than the sum of its proper divisors (83480803).

361749661 is a wasteful number, since it uses less digits than its factorization.

361749661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975291.

The product of its digits is 163296, while the sum is 43.

The square root of 361749661 is about 19019.7176898081. The cubic root of 361749661 is about 712.5292724610.

The spelling of 361749661 in words is "three hundred sixty-one million, seven hundred forty-nine thousand, six hundred sixty-one".