101025040154 has 4 divisors (see below), whose sum is σ = 151537560234. Its totient is φ = 50512520076.

The previous prime is 101025040147. The next prime is 101025040231. The reversal of 101025040154 is 451040520101.

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., 55901509225 + 45123530929 = 236435^2 + 212423^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25256260037 + ... + 25256260040.

Almost surely, 2^101025040154 is an apocalyptic number.

101025040154 is a deficient number, since it is larger than the sum of its proper divisors (50512520080).

101025040154 is an equidigital number, since it uses as much as digits as its factorization.

101025040154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50512520079.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 101025040154 its reverse (451040520101), we get a palindrome (552065560255).

The spelling of 101025040154 in words is "one hundred one billion, twenty-five million, forty thousand, one hundred fifty-four".