74151131 has 2 divisors, whose sum is σ = 74151132. Its totient is φ = 74151130.

The previous prime is 74151089. The next prime is 74151157. The reversal of 74151131 is 13115147.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74151131 - 2¹⁴ = 74134747 is a prime.

It is a super-2 number, since 2×74151131² = 10996780457158322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74151097 and 74151106.

It is not a weakly prime, because it can be changed into another prime (74151031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37075565 + 37075566.

It is an arithmetic number, because the mean of its divisors is an integer number (37075566).

Almost surely, 2^74151131 is an apocalyptic number.

74151131 is a deficient number, since it is larger than the sum of its proper divisors (1).

74151131 is an equidigital number, since it uses as much as digits as its factorization.

74151131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420, while the sum is 23.

The square root of 74151131 is about 8611.1050974889. The cubic root of 74151131 is about 420.1192612944.

Adding to 74151131 its reverse (13115147), we get a palindrome (87266278).

The spelling of 74151131 in words is "seventy-four million, one hundred fifty-one thousand, one hundred thirty-one".