75270138154 has 4 divisors (see below), whose sum is σ = 112905207234. Its totient is φ = 37635069076.

The previous prime is 75270138133. The next prime is 75270138173. The reversal of 75270138154 is 45183107257.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45183107257 = 37 ⋅1221165061.

It can be written as a sum of positive squares in only one way, i.e., 70478037529 + 4792100625 = 265477^2 + 69225^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 75270138154.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18817534537 + ... + 18817534540.

Almost surely, 2^75270138154 is an apocalyptic number.

75270138154 is a deficient number, since it is larger than the sum of its proper divisors (37635069080).

75270138154 is a wasteful number, since it uses less digits than its factorization.

75270138154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37635069079.

The product of its (nonzero) digits is 235200, while the sum is 43.

The spelling of 75270138154 in words is "seventy-five billion, two hundred seventy million, one hundred thirty-eight thousand, one hundred fifty-four".