74530151 has 4 divisors (see below), whose sum is σ = 74570304. Its totient is φ = 74490000.

The previous prime is 74530147. The next prime is 74530163. The reversal of 74530151 is 15103547.

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

It is a cyclic number.

It is not a de Polignac number, because 74530151 - 2² = 74530147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74530151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74530121) 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, 17150 + ... + 21051.

It is an arithmetic number, because the mean of its divisors is an integer number (18642576).

Almost surely, 2^74530151 is an apocalyptic number.

74530151 is a deficient number, since it is larger than the sum of its proper divisors (40153).

74530151 is a wasteful number, since it uses less digits than its factorization.

74530151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40152.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 74530151 is about 8633.0846746687. The cubic root of 74530151 is about 420.8338517220.

Adding to 74530151 its reverse (15103547), we get a palindrome (89633698).

The spelling of 74530151 in words is "seventy-four million, five hundred thirty thousand, one hundred fifty-one".