74994155 has 8 divisors (see below), whose sum is σ = 90044784. Its totient is φ = 59960800.

The previous prime is 74994131. The next prime is 74994169. The reversal of 74994155 is 55149947.

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

It is not a de Polignac number, because 74994155 - 2⁶ = 74994091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8945 + ... + 15165.

It is an arithmetic number, because the mean of its divisors is an integer number (11255598).

Almost surely, 2^74994155 is an apocalyptic number.

74994155 is a deficient number, since it is larger than the sum of its proper divisors (15050629).

74994155 is a wasteful number, since it uses less digits than its factorization.

74994155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8637.

The product of its digits is 226800, while the sum is 44.

The square root of 74994155 is about 8659.9165700369. The cubic root of 74994155 is about 421.7053771131.

The spelling of 74994155 in words is "seventy-four million, nine hundred ninety-four thousand, one hundred fifty-five".