1349490261 has 8 divisors (see below), whose sum is σ = 2056366144. Its totient is φ = 771137280.

The previous prime is 1349490229. The next prime is 1349490269. The reversal of 1349490261 is 1620949431.

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

It is not a de Polignac number, because 1349490261 - 2⁵ = 1349490229 is a prime.

It is a super-2 number, since 2×1349490261² = 3642247929067696242, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1349490269) 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, 32130700 + ... + 32130741.

It is an arithmetic number, because the mean of its divisors is an integer number (257045768).

Almost surely, 2^1349490261 is an apocalyptic number.

It is an amenable number.

1349490261 is a deficient number, since it is larger than the sum of its proper divisors (706875883).

1349490261 is an equidigital number, since it uses as much as digits as its factorization.

1349490261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64261451.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 1349490261 is about 36735.4088176517. The cubic root of 1349490261 is about 1105.0703287820.

The spelling of 1349490261 in words is "one billion, three hundred forty-nine million, four hundred ninety thousand, two hundred sixty-one".