79148554 has 4 divisors (see below), whose sum is σ = 118722834. Its totient is φ = 39574276.

The previous prime is 79148539. The next prime is 79148579. The reversal of 79148554 is 45584197.

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

It can be written as a sum of positive squares in only one way, i.e., 77528025 + 1620529 = 8805^2 + 1273^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 79148554.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19787137 + ... + 19787140.

Almost surely, 2^79148554 is an apocalyptic number.

79148554 is a deficient number, since it is larger than the sum of its proper divisors (39574280).

79148554 is a wasteful number, since it uses less digits than its factorization.

79148554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39574279.

The product of its digits is 201600, while the sum is 43.

The square root of 79148554 is about 8896.5473078043. The cubic root of 79148554 is about 429.3528285184.

The spelling of 79148554 in words is "seventy-nine million, one hundred forty-eight thousand, five hundred fifty-four".