78152413 has 16 divisors (see below), whose sum is σ = 83756160. Its totient is φ = 72762624.

The previous prime is 78152411. The next prime is 78152429. The reversal of 78152413 is 31425187.

It is a cyclic number.

It is not a de Polignac number, because 78152413 - 2¹ = 78152411 is a prime.

It is a super-2 number, since 2×78152413² = 12215599315445138, 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 (78152411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149170 + ... + 149692.

It is an arithmetic number, because the mean of its divisors is an integer number (5234760).

Almost surely, 2^78152413 is an apocalyptic number.

78152413 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

78152413 is a deficient number, since it is larger than the sum of its proper divisors (5603747).

78152413 is a wasteful number, since it uses less digits than its factorization.

78152413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708.

The product of its digits is 6720, while the sum is 31.

The square root of 78152413 is about 8840.3853422801. The cubic root of 78152413 is about 427.5439814308.

The spelling of 78152413 in words is "seventy-eight million, one hundred fifty-two thousand, four hundred thirteen".