361813749 has 8 divisors (see below), whose sum is σ = 526274592. Its totient is φ = 219281040.

The previous prime is 361813733. The next prime is 361813763. The reversal of 361813749 is 947318163.

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

It is not a de Polignac number, because 361813749 - 2⁴ = 361813733 is a prime.

It is a super-3 number, since 3×361813749³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 361813749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361833749) 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, 5481994 + ... + 5482059.

It is an arithmetic number, because the mean of its divisors is an integer number (65784324).

Almost surely, 2^361813749 is an apocalyptic number.

It is an amenable number.

361813749 is a deficient number, since it is larger than the sum of its proper divisors (164460843).

361813749 is a wasteful number, since it uses less digits than its factorization.

361813749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10964067.

The product of its digits is 108864, while the sum is 42.

The square root of 361813749 is about 19021.4023930939. The cubic root of 361813749 is about 712.5713474874.

The spelling of 361813749 in words is "three hundred sixty-one million, eight hundred thirteen thousand, seven hundred forty-nine".