1254641961 has 8 divisors (see below), whose sum is σ = 1700280064. Its totient is φ = 822715920.

The previous prime is 1254641911. The next prime is 1254641963. The reversal of 1254641961 is 1691464521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1254641961 - 2⁷ = 1254641833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1254641963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3427801 + ... + 3428166.

It is an arithmetic number, because the mean of its divisors is an integer number (212535008).

Almost surely, 2^1254641961 is an apocalyptic number.

It is an amenable number.

1254641961 is a deficient number, since it is larger than the sum of its proper divisors (445638103).

1254641961 is an equidigital number, since it uses as much as digits as its factorization.

1254641961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6856031.

The product of its digits is 51840, while the sum is 39.

The square root of 1254641961 is about 35420.9254678643. The cubic root of 1254641961 is about 1078.5491380466.

The spelling of 1254641961 in words is "one billion, two hundred fifty-four million, six hundred forty-one thousand, nine hundred sixty-one".