1154049121 has 4 divisors (see below), whose sum is σ = 1191276544. Its totient is φ = 1116821700.

The previous prime is 1154049103. The next prime is 1154049137. The reversal of 1154049121 is 1219404511.

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: 1219404511 = 13 ⋅93800347.

It is a cyclic number.

It is not a de Polignac number, because 1154049121 - 2⁷ = 1154048993 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 1154049121.

It is not an unprimeable number, because it can be changed into a prime (1154049101) 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, 18613665 + ... + 18613726.

It is an arithmetic number, because the mean of its divisors is an integer number (297819136).

Almost surely, 2^1154049121 is an apocalyptic number.

It is an amenable number.

1154049121 is a deficient number, since it is larger than the sum of its proper divisors (37227423).

1154049121 is an equidigital number, since it uses as much as digits as its factorization.

1154049121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37227422.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1154049121 is about 33971.2984885771. The cubic root of 1154049121 is about 1048.9177423221.

The spelling of 1154049121 in words is "one billion, one hundred fifty-four million, forty-nine thousand, one hundred twenty-one".