78190126 has 8 divisors (see below), whose sum is σ = 134040240. Its totient is φ = 33510048.

The previous prime is 78190121. The next prime is 78190127. The reversal of 78190126 is 62109187.

It is a happy number.

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

It is a super-2 number, since 2×78190126² = 12227391607791752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78190091 and 78190100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78190121) 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, 2792491 + ... + 2792518.

It is an arithmetic number, because the mean of its divisors is an integer number (16755030).

Almost surely, 2^78190126 is an apocalyptic number.

78190126 is a deficient number, since it is larger than the sum of its proper divisors (55850114).

78190126 is a wasteful number, since it uses less digits than its factorization.

78190126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5585018.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 78190126 is about 8842.5180802756. The cubic root of 78190126 is about 427.6127418297.

The spelling of 78190126 in words is "seventy-eight million, one hundred ninety thousand, one hundred twenty-six".