1264065454 has 4 divisors (see below), whose sum is σ = 1896098184. Its totient is φ = 632032726.

The previous prime is 1264065437. The next prime is 1264065457. The reversal of 1264065454 is 4545604621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4545604621 = 79 ⋅57539299.

It is a super-2 number, since 2×1264065454² = 3195722943992452232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264065457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316016362 + ... + 316016365.

It is an arithmetic number, because the mean of its divisors is an integer number (474024546).

Almost surely, 2^1264065454 is an apocalyptic number.

1264065454 is a deficient number, since it is larger than the sum of its proper divisors (632032730).

1264065454 is an equidigital number, since it uses as much as digits as its factorization.

1264065454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632032729.

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 1264065454 is about 35553.6981761391. The cubic root of 1264065454 is about 1081.2426979181.

The spelling of 1264065454 in words is "one billion, two hundred sixty-four million, sixty-five thousand, four hundred fifty-four".