123780070 has 8 divisors (see below), whose sum is σ = 222804144. Its totient is φ = 49512024.

The previous prime is 123780067. The next prime is 123780071. The reversal of 123780070 is 70087321.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123780071) 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, 6188994 + ... + 6189013.

It is an arithmetic number, because the mean of its divisors is an integer number (27850518).

Almost surely, 2^123780070 is an apocalyptic number.

123780070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123780070 is a deficient number, since it is larger than the sum of its proper divisors (99024074).

123780070 is a wasteful number, since it uses less digits than its factorization.

123780070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12378014.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 123780070 is about 11125.6491945414. The cubic root of 123780070 is about 498.3681063071.

The spelling of 123780070 in words is "one hundred twenty-three million, seven hundred eighty thousand, seventy".