761743149 has 4 divisors (see below), whose sum is σ = 1015657536. Its totient is φ = 507828764.

The previous prime is 761743133. The next prime is 761743181. The reversal of 761743149 is 941347167.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 761743149 - 2⁴ = 761743133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 761743149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761743349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126957189 + ... + 126957194.

It is an arithmetic number, because the mean of its divisors is an integer number (253914384).

Almost surely, 2^761743149 is an apocalyptic number.

It is an amenable number.

761743149 is a deficient number, since it is larger than the sum of its proper divisors (253914387).

761743149 is a wasteful number, since it uses less digits than its factorization.

761743149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253914386.

The product of its digits is 127008, while the sum is 42.

The square root of 761743149 is about 27599.6947265726. The cubic root of 761743149 is about 913.2776977702.

The spelling of 761743149 in words is "seven hundred sixty-one million, seven hundred forty-three thousand, one hundred forty-nine".