133077690461 has 4 divisors (see below), whose sum is σ = 134572945500. Its totient is φ = 131582435424.

The previous prime is 133077690451. The next prime is 133077690517. The reversal of 133077690461 is 164096770331.

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 30817802500 + 102259887961 = 175550^2 + 319781^2 .

It is a cyclic number.

It is not a de Polignac number, because 133077690461 - 2¹⁸ = 133077428317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133077690451) 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, 747627386 + ... + 747627563.

It is an arithmetic number, because the mean of its divisors is an integer number (33643236375).

Almost surely, 2^133077690461 is an apocalyptic number.

It is an amenable number.

133077690461 is a deficient number, since it is larger than the sum of its proper divisors (1495255039).

133077690461 is an equidigital number, since it uses as much as digits as its factorization.

133077690461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495255038.

The product of its (nonzero) digits is 571536, while the sum is 47.

The spelling of 133077690461 in words is "one hundred thirty-three billion, seventy-seven million, six hundred ninety thousand, four hundred sixty-one".