45122078 has 4 divisors (see below), whose sum is σ = 67683120. Its totient is φ = 22561038.

The previous prime is 45122069. The next prime is 45122083. The reversal of 45122078 is 87022154.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 45122078.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11280518 + ... + 11280521.

It is an arithmetic number, because the mean of its divisors is an integer number (16920780).

Almost surely, 2^45122078 is an apocalyptic number.

45122078 is a deficient number, since it is larger than the sum of its proper divisors (22561042).

45122078 is a wasteful number, since it uses less digits than its factorization.

45122078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22561041.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 45122078 is about 6717.2969265918. The cubic root of 45122078 is about 356.0106833052.

The spelling of 45122078 in words is "forty-five million, one hundred twenty-two thousand, seventy-eight".