1154420101 has 4 divisors (see below), whose sum is σ = 1154797632. Its totient is φ = 1154042572.

The previous prime is 1154420093. The next prime is 1154420131. The reversal of 1154420101 is 1010244511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1010244511 = 151 ⋅6690361.

It is a cyclic number.

It is not a de Polignac number, because 1154420101 - 2³ = 1154420093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154420131) 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, 184141 + ... + 190306.

It is an arithmetic number, because the mean of its divisors is an integer number (288699408).

Almost surely, 2^1154420101 is an apocalyptic number.

It is an amenable number.

1154420101 is a deficient number, since it is larger than the sum of its proper divisors (377531).

1154420101 is an equidigital number, since it uses as much as digits as its factorization.

1154420101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377530.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1154420101 is about 33976.7582473667. The cubic root of 1154420101 is about 1049.0301251223.

Adding to 1154420101 its reverse (1010244511), we get a palindrome (2164664612).

The spelling of 1154420101 in words is "one billion, one hundred fifty-four million, four hundred twenty thousand, one hundred one".