77130454 has 8 divisors (see below), whose sum is σ = 120726000. Its totient is φ = 36888456.

The previous prime is 77130451. The next prime is 77130457. The reversal of 77130454 is 45403177.

It is an interprime number because it is at equal distance from previous prime (77130451) and next prime (77130457).

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

It is a super-2 number, since 2×77130454² = 11898213868492232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77130451) 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, 838329 + ... + 838420.

It is an arithmetic number, because the mean of its divisors is an integer number (15090750).

Almost surely, 2^77130454 is an apocalyptic number.

77130454 is a deficient number, since it is larger than the sum of its proper divisors (43595546).

77130454 is a wasteful number, since it uses less digits than its factorization.

77130454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676774.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 77130454 is about 8782.3945481856. The cubic root of 77130454 is about 425.6722077428.

The spelling of 77130454 in words is "seventy-seven million, one hundred thirty thousand, four hundred fifty-four".