1354001261 has 16 divisors (see below), whose sum is σ = 1470970368. Its totient is φ = 1241280000.

The previous prime is 1354001249. The next prime is 1354001263. The reversal of 1354001261 is 1621004531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1354001261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1354001263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 600386 + ... + 602636.

It is an arithmetic number, because the mean of its divisors is an integer number (91935648).

Almost surely, 2^1354001261 is an apocalyptic number.

It is an amenable number.

1354001261 is a deficient number, since it is larger than the sum of its proper divisors (116969107).

1354001261 is a wasteful number, since it uses less digits than its factorization.

1354001261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1354001261 is about 36796.7561206148. The cubic root of 1354001261 is about 1106.3002816006.

Adding to 1354001261 its reverse (1621004531), we get a palindrome (2975005792).

The spelling of 1354001261 in words is "one billion, three hundred fifty-four million, one thousand, two hundred sixty-one".