761816141 has 4 divisors (see below), whose sum is σ = 763184412. Its totient is φ = 760447872.

The previous prime is 761816137. The next prime is 761816147. The reversal of 761816141 is 141618167.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 117722500 + 644093641 = 10850^2 + 25379^2 .

It is a cyclic number.

It is not a de Polignac number, because 761816141 - 2² = 761816137 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761816147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683300 + ... + 684413.

It is an arithmetic number, because the mean of its divisors is an integer number (190796103).

Almost surely, 2^761816141 is an apocalyptic number.

It is an amenable number.

761816141 is a deficient number, since it is larger than the sum of its proper divisors (1368271).

761816141 is a wasteful number, since it uses less digits than its factorization.

761816141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368270.

The product of its digits is 8064, while the sum is 35.

The square root of 761816141 is about 27601.0170283633. The cubic root of 761816141 is about 913.3068676361.

The spelling of 761816141 in words is "seven hundred sixty-one million, eight hundred sixteen thousand, one hundred forty-one".