1136491401 has 8 divisors (see below), whose sum is σ = 1518839424. Its totient is φ = 755902160.

The previous prime is 1136491373. The next prime is 1136491439. The reversal of 1136491401 is 1041946311.

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

It is a cyclic number.

It is not a de Polignac number, because 1136491401 - 2⁶ = 1136491337 is a prime.

It is a super-2 number, since 2×1136491401² = 2583225409093885602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1136491451) 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, 438186 + ... + 440771.

It is an arithmetic number, because the mean of its divisors is an integer number (189854928).

Almost surely, 2^1136491401 is an apocalyptic number.

It is an amenable number.

1136491401 is a deficient number, since it is larger than the sum of its proper divisors (382348023).

1136491401 is an equidigital number, since it uses as much as digits as its factorization.

1136491401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879391.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 1136491401 is about 33711.8881257043. Note that the first 3 decimals coincide. The cubic root of 1136491401 is about 1043.5711188491.

The spelling of 1136491401 in words is "one billion, one hundred thirty-six million, four hundred ninety-one thousand, four hundred one".