1654059049 has 4 divisors (see below), whose sum is σ = 1667083264. Its totient is φ = 1641034836.

The previous prime is 1654059031. The next prime is 1654059059. The reversal of 1654059049 is 9409504561.

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: 9409504561 = 88867 ⋅105883.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1654059049 is a prime.

It is a super-2 number, since 2×1654059049² = 5471822675157568802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1654058996 and 1654059014.

It is not an unprimeable number, because it can be changed into a prime (1654059059) 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, 6511917 + ... + 6512170.

It is an arithmetic number, because the mean of its divisors is an integer number (416770816).

Almost surely, 2^1654059049 is an apocalyptic number.

It is an amenable number.

1654059049 is a deficient number, since it is larger than the sum of its proper divisors (13024215).

1654059049 is a wasteful number, since it uses less digits than its factorization.

1654059049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13024214.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 1654059049 is about 40670.1247723682. The cubic root of 1654059049 is about 1182.6339345931.

The spelling of 1654059049 in words is "one billion, six hundred fifty-four million, fifty-nine thousand, forty-nine".