1178457061 has 8 divisors (see below), whose sum is σ = 1188907200. Its totient is φ = 1168050240.

The previous prime is 1178457047. The next prime is 1178457073. The reversal of 1178457061 is 1607548711.

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

It is a cyclic number.

It is not a de Polignac number, because 1178457061 - 2⁵ = 1178457029 is a prime.

It is a super-2 number, since 2×1178457061² = 2777522089241515442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1178457041) 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, 45085 + ... + 66253.

It is an arithmetic number, because the mean of its divisors is an integer number (148613400).

Almost surely, 2^1178457061 is an apocalyptic number.

It is an amenable number.

1178457061 is a deficient number, since it is larger than the sum of its proper divisors (10450139).

1178457061 is a wasteful number, since it uses less digits than its factorization.

1178457061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21659.

The product of its (nonzero) digits is 47040, while the sum is 40.

The square root of 1178457061 is about 34328.6623829126. The cubic root of 1178457061 is about 1056.2610232105.

The spelling of 1178457061 in words is "one billion, one hundred seventy-eight million, four hundred fifty-seven thousand, sixty-one".